Wireless speakers / Compare

JBL PartyBox 720 vs Sony ULT TOWER 9

A

Product A: JBL

PartyBox 720

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B

Product B: Sony

ULT TOWER 9

53 of 96 known

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All 96 fields

Every value links to where we found it.

Only differences

AJBL PartyBox 720

BSony ULT TOWER 9

General

4 of 8 differ

Series

PartyBox1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026

ULT POWER SOUND2Press releasesony.mediaroom.com/2025-04-09-Sony-Electronics-Introduces-Three-New-Speakers-in-the-ULT-POWER-SOUND-Range-Featuring-Global-Superstar-Post-MaloneRead 15 October 2026The release names the ULT POWER SOUND Series.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

JBLPARTYBOX720AM5Retailer pageworldwidestereo.com/products/jbl-partybox-720-bluetooth-portable-party-speakerRead 16 October 2026US listing gives model JBLPARTYBOX720AM.

SRS-ULT900, YY7864E1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide cover states Model YY7864E. The parts section and contents name the speaker SRS-ULT900.

GTIN / EAN

0500364142895Retailer pageworldwidestereo.com/products/jbl-partybox-720-bluetooth-portable-party-speakerRead 16 October 2026UPC 050036414289 for JBLPARTYBOX720AM.

0272429319233Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026US listing for Model SRSULT900 gives UPC 027242931923. The AC-only 9AC has a different UPC and is not this product.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

September 20253Reviewsoundguys.com/jbl-partybox-720-review-the-loudest-battery-powered-jbl-speaker-yet-149499Read 16 October 2026Review lists September 2, 2025. A Brazilian report dated 3 September 2025 covers the launch. German EU sales started 1 October 2025.4Press articleportaltela.com/cotidiano/tecnologia/2025/09/03/jbl-lanca-partybox-720-seu-maior-altofalante-portatil-para-festasRead 16 October 2026Portuguese-language report dated 3 September 2025 on the JBL launch of the PartyBox 720.

9 April 20252Press releasesony.mediaroom.com/2025-04-09-Sony-Electronics-Introduces-Three-New-Speakers-in-the-ULT-POWER-SOUND-Range-Featuring-Global-Superstar-Post-MaloneRead 15 October 2026Sony Electronics press release dated 2025-04-09, San Diego.

Status

Available3Reviewsoundguys.com/jbl-partybox-720-review-the-loudest-battery-powered-jbl-speaker-yet-149499Read 16 October 2026Review links to a current Amazon listing.

Available3Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026Listing is live with Add to Cart and a 898 USD price for the rechargeable battery version.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$1,099.953Reviewsoundguys.com/jbl-partybox-720-review-the-loudest-battery-powered-jbl-speaker-yet-149499Read 16 October 2026Review lists MSRP $1,099.95. Tax treatment is not stated.

$899.992Press releasesony.mediaroom.com/2025-04-09-Sony-Electronics-Introduces-Three-New-Speakers-in-the-ULT-POWER-SOUND-Range-Featuring-Global-Superstar-Post-MaloneRead 15 October 2026US suggested retail price 899.99 USD for the ULT TOWER 9 with battery. The AC-only ULT TOWER 9AC is a separate model at 749.99 USD.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US5Retailer pageworldwidestereo.com/products/jbl-partybox-720-bluetooth-portable-party-speakerRead 16 October 2026US retailer listing.

US, GB, JP4Press articletechradar.com/audio/wireless-bluetooth-speakers/sony-adds-three-bluetooth-speakers-to-its-bass-hungry-ult-range-meet-tower-9-field-5-and-field-3Read 15 October 2026Launch article of 2025-04-09 names the powered Tower 9 at 899.99 USD and 850 GBP. The US market comes from the Sony press release and Japan from the NTT-X listing. No euro price is published for the battery model in the sources read, so launch_price_eur is left out.5Retailer pagenttxstore.jp/_II_SN16806247Read 15 October 2026Japanese listing for SRS-ULT900 gives release date 2025-05-16 and describes a splash-resistant top panel.

ColoursiThe maker's own colour names

Black5Retailer pageworldwidestereo.com/products/jbl-partybox-720-bluetooth-portable-party-speakerRead 16 October 2026Only Black is listed.

Black3Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026Listing and spec table give Black Finish. No other finish is listed.

Speaker typeiHome covers speakers made to stay in one place, including smart speakers. A speaker with Wi-Fi or a voice assistant can be of any type.

Party1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Maker calls it a party speaker with a lightshow and a built-in handle and wheels.

Party3Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026Listing and the copied Sony page call it a party speaker with Party Lights, castors and karaoke inputs.

Audio

12 of 18 differ

Audio channelsiSound channels reproduced by one speaker. Pairing two speakers for stereo is separate.

Not available

Not available

Audio driversiPowered audio transducers in one speaker. Passive radiators are counted separately. Circular diameter and rectangular width and height have separate columns. Per-driver power must state continuous or RMS basis and battery or mains operation in the source note.

AJBL PartyBox 720

Driver type	Count	Diameter (mm)
Woofer	2	243
Dome tweeter	2	30

Source1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Technical specifications: two 9 inch (243 mm) woofers and two 1.25 inch (30 mm) dome tweeters. No per-driver power is published.

BSony ULT TOWER 9

Driver type	Count	Diameter (mm)	Width (mm)	Height (mm)
Woofer	1	Not available	320	320
Midrange	2	120	Not available	Not available
Front tweeter	2	50	Not available	Not available
Rear tweeter	2	40	Not available	Not available

Source1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Specifications: 3-way, bass reflex. Woofer unit about 320 mm x 320 mm (1), midrange unit about 120 mm diameter (2), front tweeter unit about 50 mm diameter (2), rear tweeter unit about 40 mm diameter (2). No per-driver power is published. The guide does not describe a passive radiator, so the passive radiator count is left out. The TV Sound Booster section says the 4 front components (2 tweeters and 2 midrange) are disabled while that function is on.

Passive radiatorsiPassive, unpowered bass radiators. Excludes powered drivers.

Not available

Not available

Rated audio poweriMaker-published total rated continuous audio output. Battery power is used for portable speakers when mains and battery ratings differ. Peak marketing power is separate.

800W1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Output power 800 W RMS (IEC60268). No separate battery and mains rating is published. SoundGuys says the speaker reaches its full 800 W on AC power.

Not available

Rated audio power on mainsiTotal rated continuous audio output with external power. Store a separate battery rating when the maker publishes both.

Not available

Not available

Audio output power (unspecified rating)iMaker- or reviewer-published audio output power whose continuous or peak rating basis is not stated. This is separate from rated continuous output and explicitly published peak output.

Not available

320W7Retailer pageamazon.com/Sony-Bluetooth-Powerful-Convenient-SRSULT900/dp/B0DYB1BFRBRead 15 October 2026US Sony storefront listing, Pattern Battery Powered, gives Speaker Maximum Output Power 320 watts. Sony's help guide, press release and spec tables publish no audio power. The rating basis (continuous, peak or RMS) is not stated, so the value sits in the unspecified-rating field. The 153 W in the guide is power consumption, not audio output. One Indian listing names 520 W for the AC-only ULT TOWER 9AC, and Sony says the AC model gives more powerful sound.

Peak audio poweriExplicitly published peak audio output. Never substitute for rated continuous output.

Not available

Not available

Frequency response lower limit (claimed)iPublished acoustic frequency response limit. Tolerance and operating mode belong in the source note. The Bluetooth transmission range that some spec tables and retailers label Frequency Response, such as A2DP 20 to 20,000 Hz, is not stored.

32Hz1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 202632 Hz to 20 kHz with no stated tolerance.

Not available

Frequency response upper limit (claimed)iPublished acoustic frequency response limit. Tolerance and operating mode belong in the source note. The Bluetooth transmission range that some spec tables and retailers label Frequency Response, such as A2DP 20 to 20,000 Hz, is not stored.

20kHz1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 202632 Hz to 20 kHz with no stated tolerance.

Not available

Signal-to-noise ratio (claimed)

80dB1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Published as greater than 80 dB. The stored number is the lower bound.

Not available

Adjustable equalizeriUser-adjustable frequency bands. Selecting fixed sound presets alone does not qualify.

Yes1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026The sheet says the JBL PartyBox app controls the music, EQ and lightshow.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: select CUSTOM in Sound Effect in the Sony | Sound Connect app, then adjust CUSTOM EQ. CUSTOM is not available while TV Sound Booster is on.

Equalizer bandsiNumber of user-adjustable frequency bands. Do not count sound presets.

73Reviewsoundguys.com/jbl-partybox-720-review-the-loudest-battery-powered-jbl-speaker-yet-149499Read 16 October 2026The JBL PartyBox app has a 7-band EQ with Deep and Punchy bass modes.

103Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026Copy of the Sony page says 10-Band Equalizer controllable through the Sony | Sound Connect app. The UK EE spec table lists Custom EQ band: 10. The help guide gives no band count.6Retailer pageee.co.uk/help/tech/device/Sony/SRS-ULT900WirelessSpeakerRead 15 October 2026UK spec table reproducing Sony data lists Custom EQ band: 10, Volume Step: 50, and the same driver sizes as the help guide. It lists water protection as Splashproof with no IP rating. It lists Bluetooth 5.3, SBC, AAC and LDAC, 153 W power consumption, 410 x 910 x 456 mm and 29.6 kg, which match the guide.

Automatic sound adjustmentiAdjusts audio to placement or playback conditions. Keep the named feature and conditions in the source note.

Not available

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Sound Field Optimization uses microphone sensing to detect noise around the speaker and adjust the sound. It is on at purchase and is turned off in Stereo Pair or Party Connect.

Sound modesiNamed playback modes. Battery extension modes are also qualified in battery source notes.

Deep Bass Boost, Punchy Bass Boost3Reviewsoundguys.com/jbl-partybox-720-review-the-loudest-battery-powered-jbl-speaker-yet-149499Read 16 October 2026Deep and Punchy bass modes. The German review by hifi.de names the two Bass Boost levels Tief and Druckvoll.

ULT1, ULT2, TV Sound Booster, STAMINA1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026ULT button cycles ULT1 (deep bass), ULT2 (sense of power) and off. TV Sound Booster is a named mode for optical TV audio. STAMINA is a power option in the app that turns off lighting and sound effects including ULT POWER SOUND to save battery. No STAMINA playtime is published, so battery_life_boost_h is left out.

Wireless stereo pairingiTwo compatible speakers can play separate left and right channels.

Yes1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026The sheet says two PartyBox 720 speakers can be paired for true stereo.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: Stereo Pair needs 2 ULT TOWER 9 speakers. One plays left and the other right over Bluetooth.

Speaker link protocolsiNamed systems for linking compatible speakers, such as PartyBoost, Auracast or Party Connect. Linking support does not establish compatibility across all models.

Auracast, PartyTogether1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Multi-speaker connection by Auracast with other JBL Auracast speakers. PartyTogether is from SoundGuys.3Reviewsoundguys.com/jbl-partybox-720-review-the-loudest-battery-powered-jbl-speaker-yet-149499Read 16 October 2026PartyTogether in the JBL PartyBox app links the 720 with other PartyBox speakers such as the 520. Auracast links it with Auracast JBL speakers such as the Charge 6 and Xtreme 4.

Party Connect, Stereo Pair1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide names the Stereo Pair and Party Connect functions.

Max linked speakersiPublished maximum in a speaker group. A stereo pair is recorded separately. A figure such as 100+ is stored as 100.

Not available

1001Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Party Connect links up to 100 Party Connect compatible speakers over Bluetooth. Wireless Party Chain devices are excluded.

Max Bluetooth group speakersiPublished maximum speakers in one Bluetooth playback group, including the first speaker. Source notes name the compatible models or families, linking system and firmware requirements. Wi-Fi groups and concurrent Bluetooth source devices are excluded. A stereo pair alone does not establish the maximum when other Bluetooth linking systems are supported. A figure such as 100+ is stored as 100.

Not available

1001Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Same Party Connect statement: up to 100 speakers over Bluetooth. Whether the 100 includes the first speaker is not stated. The guide points to https://www.sony.net/partyconnect-dvc/ for compatible models, and that page returned Access Denied, so the compatible models are not named here. Each speaker needs the latest pre-installed software. Codec switches to SBC and multipoint, Sound Field Optimization and the USB, AUDIO IN and OPTICAL IN sources are off while Party Connect is on.

Connectivity

11 of 16 differ

Bluetooth audio playbackiPlays audio streamed over Bluetooth from a phone or other source. Bluetooth used only for setup or app control does not count.

Yes3Reviewsoundguys.com/jbl-partybox-720-review-the-loudest-battery-powered-jbl-speaker-yet-149499Read 16 October 2026

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026

Bluetooth versioniVersion of the Bluetooth radio. Some Wi-Fi speakers use Bluetooth only for setup. See Bluetooth audio playback.

5.41Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Bluetooth 5.4.

5.31Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Supported BLUETOOTH standard version 5.3.

Bluetooth codecsiExplicitly supported receive codecs. Bluetooth version alone does not establish codecs.

SBC, AAC3Reviewsoundguys.com/jbl-partybox-720-review-the-loudest-battery-powered-jbl-speaker-yet-149499Read 16 October 2026Bluetooth 5.4 with SBC and AAC.

SBC, AAC, LDAC1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: SBC, AAC and LDAC for music playback over an A2DP connection. Party Connect forces SBC.

Bluetooth profiles

A2DP 1.4, AVRCP 1.61Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026A2DP V1.4 and AVRCP V1.6.

A2DP, AVRCP1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide lists A2DP and AVRCP. The UK EE spec table also lists SPP, which the guide does not, so SPP is left out.

Bluetooth LE AudioiExplicit LE Audio support. Bluetooth LE for app control alone does not qualify.

Not available

Not available

AuracastiExplicit Auracast support. Sending, receiving and speaker-group roles belong in source notes.

Yes1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Multi-speaker connection by Auracast. Sending and receiving roles are not stated.

Not available

MultipointiConcurrent Bluetooth source connections. Pairing memory and speaker-to-speaker linking do not qualify.

Not available

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide describes connecting concurrently with 2 Bluetooth devices. It is not available in Stereo Pair or Party Connect.

Multipoint source devicesiMaximum concurrently connected Bluetooth source devices, not remembered pairings.

Not available

21Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Up to 2 Bluetooth devices at once. The speaker remembers up to 8 paired devices but plays from one at a time.

Bluetooth range (claimed)iMaker-claimed Bluetooth range to the source device. Test conditions belong in the source note.

Not available

30m1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Maximum communication range about 30 m (98.4 ft) in line of sight. It shortens with obstacles and 2.4 GHz interference.

Wi-FiiBuilt-in Wi-Fi, for audio streaming, setup or control.

Not available

No3Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026Quick Specs list Wi-Fi: No. The Sony help guide describes Bluetooth only.

Wi-Fi standardsiOne 802.11 name per item, such as 802.11ax. A Wi-Fi generation is written as its standard, so Wi-Fi 5 is 802.11ac and Wi-Fi 6 is 802.11ax. Older standards are listed only when a source names them.

Not available

Not available

Network audio protocolsiNamed systems that stream audio to the speaker over the home network. AirPlay is written as AirPlay 2. Chromecast built-in is written as Google Cast. Other names follow the maker, such as Spotify Connect.

Not available

Not available

USB audio inputiPlayback from a connected computer or phone through USB. Charging, service ports and USB flash-drive playback do not qualify.

Yes1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026The USB-C input connects to streaming or karaoke apps with high-quality sound. SoundGuys says it handles digital audio including lossless.3Reviewsoundguys.com/jbl-partybox-720-review-the-loudest-battery-powered-jbl-speaker-yet-149499Read 16 October 2026The single USB-C port can handle digital audio, including lossless playback.

Not available

USB drive playbackiPlayback of audio files on a connected USB storage device.

Yes1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Supported formats MP3, WAV and FLAC on FAT16 or FAT32 USB storage. The quick start guide says these formats are not available in the EMEA region, so this value describes the non-EMEA model only.2Owner's manualcdn.tgdd.vn/Products/PDF/3/356825/HDSD/Huong-dan-su-dung.pdfRead 16 October 2026Tech spec footnote: supported formats are not available for the EMEA region.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide describes playback from a USB Mass Storage Class device formatted FAT (not exFAT) on the PLAY/CHARGE OUTPUT port. iPhone over USB is not supported. USB audio from a computer is not described.

USB audio file formats

MP3, WAV, FLAC1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Supported formats .MP3, .WAV and .FLAC. Not available in the EMEA region.

MP3, WMA, WAV1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Supported audio file formats are MP3, WMA and WAV.

PortsiPhysical speaker connectors. Record charging, audio input, power output and service roles separately. A shared microphone and guitar jack is one port. A combo jack that takes XLR and 6.35 mm plugs is 6.35 mm audio, and the role names XLR. Optical is a TOSLINK digital audio socket.

AJBL PartyBox 720

Connector	Count	Role
AC power	1	Mains power input and battery charging
USB-C	1	USB audio input, USB drive music playback (FAT16 and FAT32) and charge output to mobile devices
3.5 mm audio	1	AUX audio input
6.35 mm audio	2	Combo XLR and 6.35 mm inputs for microphone, guitar, line-in or DJ console

Source1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026USB-C, AUX 3.5 mm and two XLR inputs are named on the sheet. SoundGuys says the XLR inputs are combo XLR and 1/4 inch jacks. The sheet lists Mic-In, Guitar-In or Line-In and AUX-In sensitivities.3Reviewsoundguys.com/jbl-partybox-720-review-the-loudest-battery-powered-jbl-speaker-yet-149499Read 16 October 2026Dual XLR and 1/4 inch combo inputs at the back, a 3.5 mm aux port and one USB-C port.

BSony ULT TOWER 9

Connector	Count	Role
AC power	1	AC power input
USB-A	1	USB storage playback and charging output for other devices
3.5 mm audio	1	Audio input
6.35 mm audio	1	MIC1 microphone input
6.35 mm audio	1	MIC2 and GUITAR input
Optical (TOSLINK)	1	Optical digital audio input (PCM)

Source1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Parts list: AC input jack, PLAY/CHARGE OUTPUT USB port (Type A in the specifications), AUDIO IN jack (3.5 mm), OPTICAL IN connector (PCM, fs 32/44.1/48/96 kHz), MIC1 jack (6.3 mm) and MIC2/GUITAR jack (6.3 mm). The USB port and the optical, audio and mic jacks sit behind caps. The 6.3 mm connectors are counted as 6.35 mm.

Controls and software

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SpeakerphoneiBuilt-in microphone and call support, through a connected phone or a voice assistant's calling. A microphone used only for voice commands does not count. Microphone inputs for karaoke are separate.

Not available

No3Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026Spec table lists Built-In Mic: No. The help guide has no call function. The microphone sensing of Sound Field Optimization is not for calls.

Voice assistantsiVoice assistants explicitly usable through the speaker, such as Amazon Alexa, Google Assistant, Siri or Sonos Voice Control. State whether a connected phone is required.

Not available

Not available

Controls

Power, Bluetooth pairing, Auracast multi-speaker connection, Bass Boost, Volume knob, Play/pause, next and previous track (one, two or three presses), Microphone volume, Lightshow controls2Owner's manualcdn.tgdd.vn/Products/PDF/3/356825/HDSD/Huong-dan-su-dung.pdfRead 16 October 2026Play section: one press plays or pauses, two presses next track, three presses previous track. Panels also show Bluetooth pairing, lightshow, microphone and guitar or line-in, and multi-speaker connection.3Reviewsoundguys.com/jbl-partybox-720-review-the-loudest-battery-powered-jbl-speaker-yet-149499Read 16 October 2026Top panel has buttons for power, Bluetooth, Auracast and Bass Boost, knobs for volume and microphone levels and lightshow controls.

Power, ULT sound mode, Bluetooth pairing, Optical input select, TV Sound Booster, Audio input select, USB input select, Party Connect, Stereo Pair, Lighting on and off, Lighting color selectors, Multi color lighting, Volume up and down, Play, pause and skip, Key control, Echo, Guitar mode, Microphone level knob, Microphone and guitar level knob, Battery level and Battery Care1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Parts list: power button, ULT, CHARGE indicator, direct function keys (Bluetooth, OPTICAL IN, TV SOUND BOOSTER, AUDIO IN, USB), MULTI COLOR, CONNECT, STEREO PAIR, lighting color selectors, KEY CONTROL flat and sharp, ECHO, LIGHT, volume minus and plus, play, MIC level knob, MIC and GUITAR level knob, GUITAR button and the BATTERY and BATTERY CARE button behind the rear cap.

Companion app

JBL PartyBox1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026JBL PartyBox app.

Sony | Sound Connect1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: Sony | Sound Connect app for updates, sound settings, equalizer, lighting, TV Sound Booster and party functions.

App platforms

Android, iOS2Owner's manualcdn.tgdd.vn/Products/PDF/3/356825/HDSD/Huong-dan-su-dung.pdfRead 16 October 2026Google Play and App Store badges for the JBL app.

iOS, Android1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: download from the Google Play store or the App Store.

User firmware updates

Not available

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide has a section on updating the speaker software through the Sony | Sound Connect app.

Built-in lightingiDecorative or ambient lighting. Status, battery, connection and microphone indicator LEDs alone do not qualify.

Yes1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Lightshow with starry lights, flowing trails and pulsing strobes.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: the speaker lights up with the music. Lighting is on at purchase.

Lighting modes

Starry lights, Flowing trails, Strobes1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Maker wording: starry lights, flowing trails and strobes. No effect names are published on the sheet.

Multi color, Red, Yellow, Green, Blue, Purple1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: five lighting color selectors (red, yellow, green, blue, purple) and MULTI COLOR for the default multicolor mode. The app has a Lighting Mode function and Party Light functions that are not listed here.

Smart home

None of 3 known

Matter controlleriCan add and control Matter devices. Being a Matter device alone does not count.

Not available

Not available

Thread border routeriConnects Thread smart home devices to the home network.

Not available

Not available

Zigbee hubiA built-in Zigbee radio that controls Zigbee smart home devices.

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Battery and charging

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Built-in battery

Yes1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026The speaker has two battery bays for JBL BATTERY 600 packs. The sheet is titled Battery Included but its box list names no battery, and it also says the swappable batteries are sold separately. For EMEA the quick start guide says batteries are not included.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: the speaker runs on AC power or on the built-in lithium-ion battery.

Playback time (claimed)iMaximum maker-claimed music playback on one charge in normal playback mode. Battery extension or reduced-bass boost modes belong in battery_life_boost_h. Record volume and lighting conditions in the source note.

15h1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Up to 15 hours. It varies with volume and audio content. No test volume or lightshow setting is stated.

25h1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: about 25 hours at volume level 18 with ULT1/2 on and lighting off over a Bluetooth connection, not in Battery Care mode. About 12 hours with lighting on at volume 18 and about 2.5 hours at maximum volume 50 with ULT1/2 and lighting on. Measured with a Sony specified music source.

Playback with battery extension (claimed)iTotal claimed runtime with the named battery extension mode enabled. Store the total, not only the extra hours. Keep sound and lighting restrictions in the source note.

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Battery energyiPublished battery pack energy. Do not calculate from an assumed voltage.

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Battery capacityiPublished pack capacity at the voltage in battery_voltage_v. Do not substitute power-bank output capacity. A figure written per cell, such as 5000mAh*2, is not a pack capacity unless the maker states the pack figure.

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Nominal battery voltage

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Battery chemistry

Lithium-ion1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Li-ion.

Lithium-ion1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide specifications and power section: built-in lithium-ion battery. Capacity in Wh or mAh is not published.

User-replaceable batteryiBattery that the maker documents as replaceable by the user. Service replacement does not qualify.

Yes1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Maker describes swappable JBL BATTERY 600 packs. The quick start guide shows the replacement steps.2Owner's manualcdn.tgdd.vn/Products/PDF/3/356825/HDSD/Huong-dan-su-dung.pdfRead 16 October 2026Battery replacement section: remove the old battery and insert the new JBL BATTERY 600 x 2. Charge the battery before first use.

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Full charge timeiTime from discharged to full under the maker conditions. Adapter rating and simultaneous use belong in source notes.

3h1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 20263 hours with the speaker off.

3h1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: charging completes in about 3 hours from empty to 100 percent with the speaker turned off. Battery Care mode limits the charge to about 90 percent.

Quick charge duration

10min1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026A 10-minute fast charge.

10min1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: 10 minutes of charging provides about 180 minutes of music playback.

Playback after quick chargeiClaimed music playback after quick_charge_min of charging. Source conditions apply.

2h1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Gets up to 2 extra hours of playtime.

3h1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026180 minutes is stored as 3 hours. Conditions are volume level 18, ULT1/2 on and lighting off.

Charging input ratingiPublished speaker input voltage and current. An adapter rating alone does not establish device input.

100-240 V AC, 50/60 Hz1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Power input 100-240 V AC, 50/60 Hz. No input current is published.

AC 120 V, 60 Hz in North America. AC 120 V to 240 V, 50/60 Hz in other regions1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Specifications, Power: AC 120 V, 60 Hz for North America. AC 120 V to 240 V, 50/60 Hz for other countries and regions. Power consumption is about 153 W and is not a charging figure. The battery charges only from the AC input jack.

Max charging inputiPublished maximum charging input. USB audio power requirements and adapter output are separate.

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USB Power Delivery charging

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Charges other devices

Yes1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026USB-C charge out lists PDO profiles up to 20 V / 1.5 A and PPS 5-16 V / 1.85 A. No watt figure is published, so none is stored.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: a smartphone or other USB device charges from the PLAY/CHARGE OUTPUT port, also from the battery with no AC connected. It does not work when the battery is low.

Max power-bank outputiPublished power delivered by the speaker to another device. Output voltage and current belong in the source note.

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7.5W1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Specifications, DC OUT: Type A USB port, DC 5 V and MAX 1.5 A. 5 V x 1.5 A is 7.5 W.

Wireless chargingiThe speaker battery can be charged wirelessly. Wireless power output to another device is separate.

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Durability

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Dust and water ratingiExact published IP rating. Keep separate ratings, such as IP68 and IP69, as separate entries.

IPX41Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026IPX4 splash proof.

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Floats

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Drop resistanceiExplicit maker claim or defined drop test. Do not infer from rugged wording.

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Drop test heightiMaker-published tested height. Surface and conditions belong in source notes.

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Carry featuresiPublished handles, straps, carabiners or wheels.

Integrated handle, Wide wheels1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Ergonomic integrated handle and wider sturdy wheels.3Reviewsoundguys.com/jbl-partybox-720-review-the-loudest-battery-powered-jbl-speaker-yet-149499Read 16 October 2026Integrated handle and wide wheels. It has no telescopic handle, unlike the PartyBox 520.

Carry handle, Caster wheels1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: a handle and caster wheels. The wheels work on flat surfaces only. On uneven surfaces two people lift the speaker by the handle.

Measured

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Playback time (measured)iReviewer-measured playback per charge. Volume, lighting, sound mode, firmware and connection belong in the source note.

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Max sound pressure (measured)iReviewer-measured maximum SPL. Distance, test method and power source belong in source notes.

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Low-frequency extension (measured)iReviewer-measured low-frequency limit. Threshold and test method belong in source notes.

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High-frequency extension (measured)iReviewer-measured high-frequency limit. Threshold and test method belong in source notes.

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Audio latency (measured)iReviewer-measured source-to-speaker latency. Source device, app, codec, firmware and connection belong in source notes. App compensation may affect results.

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Full charge time (measured)iReviewer-measured time from empty to full. Power adapter and method belong in the source note.

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Dimensions and weight

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DimensionsiSpeaker body width, height and depth on explicitly identified axes. Unlabeled tuples do not establish axis meanings. Handle, strap and orientation conditions belong in the source note.

Width416Height942Depth406mm(16.4 × 37.1 × 16 in)1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Product dimensions are listed as width x height x depth: 416 x 942 x 406 mm. Package is 491 x 1027 x 468 mm.

Width410Height910Depth456mm(16.1 × 35.8 × 18 in)1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Specifications: about 410 mm x 910 mm x 456 mm (W x H x D) including projecting parts and controls.

WeightiSpeaker mass including its battery. Excludes packaging, charger and removable carry accessories unless the source states otherwise.

31,000g(68.3 lb)1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Net weight 31 kg. Gross weight 34.9 kg. The sheet does not say whether batteries are counted. A German retailer lists 29 kg for the EU item without batteries.

29,600g(65.3 lb)1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Specifications: mass about 29.6 kg including battery. Retailers list 65.26 lb. This is far above the peer median because the product is a floor-standing party tower on caster wheels.

Body materials

Post-consumer recycled plastic1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Post-consumer recycled plastic.

Plastic (partly recycled)3Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026Copy of the Sony page says recycled plastic originally developed for Sony is partially used for the body. Other body materials are not published.

Certifications

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FCC IDs

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Other certifications

FSC-certified paper packaging1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Packaged in FSC-certified paper printed with soy ink.

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In the box

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In the box

JBL PartyBox 720, Quick start guide, Safety instruction and warranty card, AC power cord1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Box list: 1 speaker, 1 quick start guide, 1 safety instruction and warranty card, AC power cord. Quantity and plug type vary by region.

ULT TOWER 9 speaker, AC power cord, Optical digital cable, Reference Guide1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide names the supplied AC power cord, the supplied optical digital cable and a Reference Guide included with the product.

Links

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Product page

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Spec sheet

static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdf1Maker spec sheet (PDF)static.pcrichard.com/docs/PARTYBOX720_Specifications-Sheet_01.pdfRead 16 October 2026Harman spec sheet titled PartyBox 720 Battery Included, copyright 2025, hosted by a US retailer. A matching sheet titled Battery Not Included exists for Poland and the EMEA region.

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Manual

cdn.tgdd.vn/Products/PDF/3/356825/HDSD/Huong-dan-su-dung.pdf2Owner's manualcdn.tgdd.vn/Products/PDF/3/356825/HDSD/Huong-dan-su-dung.pdfRead 16 October 2026Global quick start guide, two pages in many languages, hosted by a retailer. No full owner's manual was found on a readable host.

helpguide.sony.net/speaker/7864/v1/en/print.pdf1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Sony English help guide for ULT TOWER 9, full print PDF read. Copyright 2025 Sony Corporation, 104 pages.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

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Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

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1year3Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026US listing gives a 1 year limited parts warranty and a 1 year limited labor warranty. The UK EE spec table gives 24 months. Other markets are not covered.

Both are also in the API. Back to all wireless speakers.