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Beats Solo 4

BeatsMusic headset

Solo 4

Released May 2024.7Press releasesilicon.co.uk/press-release/introducing-beats-solo-buds-looks-tiny-sounds-hugeRead 10 October 2026Orderable from apple.com on 2024-04-30. SoundGuys lists the release as April 30, 2024 and Android Headlines reported shelf availability from 2 May. Last checked 10 October 2026.

Form factor
On-ear
Audio connections
Bluetooth, USB, Analog
Active noise cancelling
No
Battery life (claimed, max)
50h

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At a glance

All specs

SourceCalculated

General

Series
Solo7Press releasesilicon.co.uk/press-release/introducing-beats-solo-buds-looks-tiny-sounds-hugeRead 10 October 2026Next generation of the Beats Solo line
Model numbers
A3140, MUW23LL/A, MUW43LL/A, MUW33LL/A1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026MUW23LL/A, MUW43LL/A and MUW33LL/A are the US part numbers in the page data for Matte Black, Slate Blue and Cloud Pink. A3140 is from the safety and handling guide.5Maker spec sheet (PDF)beatsbydre.com/content/dam/beats-support/global/product-safety-and-handling/solo4/solo4-sh-ee.pdfRead 10 October 2026Model: A3140
GTIN / EAN
Not available
Announced
30 April 20247Press releasesilicon.co.uk/press-release/introducing-beats-solo-buds-looks-tiny-sounds-hugeRead 10 October 2026Business Wire release dated April 30, 2024. Available to order that day.
Status
Available1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026Sold on the maker page.
Predecessor
Not available
Successor
Not available
Launch price (US)
$199.997Press releasesilicon.co.uk/press-release/introducing-beats-solo-buds-looks-tiny-sounds-hugeRead 10 October 2026$199.99 (US), excluding tax
Launch price (EU)
Not available
Markets
Not available
Colours
Matte Black, Slate Blue, Cloud Pink1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026Colour swatches on the page. Limited editions are not listed.7Press releasesilicon.co.uk/press-release/introducing-beats-solo-buds-looks-tiny-sounds-hugeRead 10 October 2026
Segment
Music1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026Listed under Beats headphones for music. Not a gaming headset.

Design

Form factor
On-ear1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026Form factor: on-ear
Ear cup enclosure
Closed8Spec databasesoundguys.com/product/beats-solo-4Read 10 October 2026Acoustic design: closed-back
Wearing style
Headband1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026
Folding
Inward13Reviewreviewed.com/headphones/content/beats-solo-4-reviewRead 10 October 2026A metallic hinge on either side of the headband lets the ear cups fold in and fit in the zippered carrying case.
Swivelling ear cups
No14Reviewtechradar.com/audio/headphones/beats-solo-4-reviewRead 10 October 2026The ear cups do not swivel, so the edges can rest between the chin and collarbone when worn around the neck. The review also says the cups fold on loose hinges.
RGB lighting
Not available
Lighting zones
Not available

Drivers and sound

Driver type
Dynamic8Spec databasesoundguys.com/product/beats-solo-4Read 10 October 2026Driver type: dynamic, 40 mm
Driver size
40mm1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026
Drivers per side
18Spec databasesoundguys.com/product/beats-solo-4Read 10 October 2026Driver count: 1
Diaphragm material
Not available
Magnet
Not available
Frequency response (wired or passive)
Not available
Wireless audio transmission band
Not available
Impedance (passive when specified)
Not available
Sensitivity (passive when specified)
Not available
Sensitivity reference
Not available
THD (claimed)
Not available
Max input power
Not available
Max digital audio sample rate
Not available
Max digital audio bit depth
Not available
DAC
Not available
Personalised sound
Not available
Onboard EQ
No9Measurementsoundguys.com/beats-solo-4-review-115347Read 10 October 2026The Beats app offers no EQ presets and no sound adjustment.
Custom EQ bands
Not available
EQ presets
Not available
Volume limit
Not available

Spatial audio

Spatial audio support
Personalized Spatial Audio1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026Personalized Spatial Audio with dynamic head tracking. Works on Apple platforms.
Spatial audio licence included
Not available
Head tracking
Yes1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026Built-in gyroscopes and accelerometers

Noise cancelling

Active noise cancelling
No2Maker product pagebeatsbydre.com/support/headphones/solo4Read 10 October 2026Beats Solo 4 does not feature Active Noise Cancelling (ANC).
ANC type
Not available
ANC microphones
Not available
Adaptive ANC
Not available
ANC levels
Not available
ANC attenuation (claimed)
Not available
Transparency mode
Not available
Adjustable transparency
Not available
Conversation detection
Not available
Wind noise reduction
Not available

Measured

Frequency response notes
Slightly bright sound signature. Flat bass and mid-range with a gently boosted treble.11Measurementrtings.com/headphones/reviews/beats/solo-4-wirelessRead 10 October 2026Slightly bright signature, flat bass and mid-range, gently boosted treble
Bass amount
-1dB11Measurementrtings.com/headphones/reviews/beats/solo-4-wirelessRead 10 October 2026Bass slightly underemphasized at -1 dB. Public review text. Test bench version not recorded.
Treble amount
1dB11Measurementrtings.com/headphones/reviews/beats/solo-4-wirelessRead 10 October 2026Treble slightly emphasized at +1 dB
Deviation from target
Not available
Consistency between fittings
Not available
Harmonic distortion
Not available
Sound leakage
Not available
Measured noise isolation
ANC onBass (dB)Mids (dB)Treble (dB)
No-0.813.530
Source12Measurementtechgearlab.com/reviews/audio/wireless-headphones/beats-solo-4Read 10 October 2026Passive only (the headset has no ANC). Table Low -0.8, Mid 13.5, High 30.0, read as dB reduction. The page does not label units, band limits or the rig, and gives no overall figure.
Noise isolation (measured, best)
Not available
Passive isolation (measured)
Not available
Mic quality notes
Disappointing overall microphone performance.11Measurementrtings.com/headphones/reviews/beats/solo-4-wirelessRead 10 October 2026RTINGS microphone verdict for the Solo 4: disappointing performance. Public review text.
Mic low-frequency extension
Not available
Mic high-frequency extension
Not available
Mic speech-to-noise ratio
Not available
Measured latency
Not available
Bluetooth latency (measured, worst)
Not available
2.4 GHz latency (measured, worst)
Not available
Measured battery life
ConnectionANCHours (h)
BluetoothNo84.3
Source9Measurementsoundguys.com/beats-solo-4-review-115347Read 10 October 2026SoundGuys battery test over Bluetooth at music peaking at 75 dB SPL. 84 h 18 min (84.3 h). Firmware 2C241.
Battery life (measured, max)
84.3h
Clamping force
Not available
Weight (measured)
218g(7.7 oz)12Measurementtechgearlab.com/reviews/audio/wireless-headphones/beats-solo-4Read 10 October 2026Spec table: measured weight 218 g. The review text repeats 218 grams. Cable not involved.

Microphone

Microphone
Built-in1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026Multiple digital beam-forming microphones. The count is not published.
Microphone element
MEMS13Reviewreviewed.com/headphones/content/beats-solo-4-reviewRead 10 October 2026Lists two digital beamforming MEMS microphones. SoundGuys lists a single microphone and the maker says multiple, so the count is not stored.
Microphone pickup pattern
Not available
Voice microphones
Not available
Total microphones
Not available
Mic frequency response
Not available
Mic sensitivity
Not available
Mic signal-to-noise
Not available
Mic sample rate
Not available
Mic noise reduction
AI8Spec databasesoundguys.com/product/beats-solo-4Read 10 October 2026Digital beamforming with machine learning noise rejection
Flip to mute
Not available
Mute button
Yes3Owner's manualsupport.apple.com/guide/beats/use-beatssolo4-dev484e78f99/webRead 10 October 2026During a call, press the b button to mute or unmute the microphone.
Mute indicator
Not available
Sidetone
Not available
Adjustable sidetone
Not available
Foam microphone windscreen
Not available

Connectivity

Audio connections
Bluetooth, USB, Analog1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026
Analog source plugs
3.5 mm TRS9Measurementsoundguys.com/beats-solo-4-review-115347Read 10 October 2026Wired via the included 3.5 mm TRS cable or USB-C
Cable connector on headset
3.5 mm1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026
Longest included cable
Not available
Headset USB plug or port
USB-C1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026
Audio over USB-C cable
Yes1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 20263Owner's manualsupport.apple.com/guide/beats/use-beatssolo4-dev484e78f99/webRead 10 October 2026
Passive wired listening
Yes1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026Zero battery power required when listening via 3.5 mm audio cable
Wireless receiver
None1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026No dongle in the box or on the page.
Wireless receiver connector
Not available
Wireless range (claimed)
Not available
Bluetooth
5.31Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026Bluetooth 5.3, Class 1
Bluetooth codecs
SBC, AAC9Measurementsoundguys.com/beats-solo-4-review-115347Read 10 October 2026Bluetooth 5.3 via SBC or AAC10Reviewheadphonecheck.com/test/beats-solo-4Read 10 October 2026Bluetooth 5.3 with SBC and AAC
LE Audio
Not available
Auracast
Not available
Bluetooth multipoint
No10Reviewheadphonecheck.com/test/beats-solo-4Read 10 October 2026Classic multipoint is not included. The headphones disconnect from the old source when a new one connects.
Multipoint devices
Not available
Paired devices remembered
Not available
Mixes 2.4 GHz and Bluetooth audio
Not available
Fast pairing
Google Fast Pair2Maker product pagebeatsbydre.com/support/headphones/solo4Read 10 October 2026Google Fast Pair one-touch pairing on Android
Base station
Not available

Latency

We could not find any of these 2 fields. Show them
Low latency mode
Not available
Claimed latency
Not available

Compatibility

Compatible platforms
iOS, macOS, Android3Owner's manualsupport.apple.com/guide/beats/use-beatssolo4-dev484e78f99/webRead 10 October 2026Wired USB-C works with a supported iPhone, iPad, Mac or Android device. Bluetooth pairing is covered for Apple and Android.
Connection per platform
PlatformConnection
iOSBluetooth
macOSBluetooth
AndroidBluetooth
iOSUSB
macOSUSB
AndroidUSB
Source3Owner's manualsupport.apple.com/guide/beats/use-beatssolo4-dev484e78f99/webRead 10 October 2026Pairing guide for Apple and Android devices. USB-C cable steps name iPhone, iPad, Mac and Android. Microphone use over each connection is not documented.
Official licence
Not available

Battery and charging

Battery capacity
Not available
Swappable battery
No5Maker spec sheet (PDF)beatsbydre.com/content/dam/beats-support/global/product-safety-and-handling/solo4/solo4-sh-ee.pdfRead 10 October 2026The lithium-ion battery should be serviced or recycled by Apple or an authorized service provider. This is a service rule, not a user-swap claim.
Batteries included
Not available
Claimed battery life
ConnectionANCHours (h)
BluetoothNo50
Source1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026Up to 50 hours of listening time on a single charge. Apple notes that battery life depends on settings, environment and usage. The headphones have no ANC.
Battery life (claimed, max)
50h
Battery life with ANC (claimed)
Not available
Battery life without ANC (claimed)
50h
Charging port
USB-C1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026
Full charge time
135min4Owner's manualsupport.apple.com/guide/beats/about-charging-and-playback-time-devc8a939c17/webRead 10 October 2026Up to 50 hours of playback after an approximate 2-hour-and-15-minute charge
Quick charge time
10min1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 20264Owner's manualsupport.apple.com/guide/beats/about-charging-and-playback-time-devc8a939c17/webRead 10 October 2026
Quick charge playback
5h1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026Fast Fuel, a 10-minute charge gives up to 5 hours of playback4Owner's manualsupport.apple.com/guide/beats/about-charging-and-playback-time-devc8a939c17/webRead 10 October 2026A 10-minute charge provides up to 5 hours of playback.
Use while charging
Yes3Owner's manualsupport.apple.com/guide/beats/use-beatssolo4-dev484e78f99/webRead 10 October 2026When connected using the included USB-C cable, your headphones charge while you listen to audio.
Charging dock or stand
Not available

Controls

Controls
Buttons1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026
Volume control
Buttons1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026
Game and chat mix
Not available
Remappable controls
Yes2Maker product pagebeatsbydre.com/support/headphones/solo4Read 10 October 2026Call controls on the b button. End-call and mute actions can be changed in the Beats settings (see the Apple guide).3Owner's manualsupport.apple.com/guide/beats/use-beatssolo4-dev484e78f99/webRead 10 October 2026Customize the end-call and mute/unmute actions on Beats Solo 4.
Wear detection
No10Reviewheadphonecheck.com/test/beats-solo-4Read 10 October 2026No auto pause feature. They keep playing when taken off.
Voice assistant
Siri, Google Assistant2Maker product pagebeatsbydre.com/support/headphones/solo4Read 10 October 2026Siri on Apple devices. Press and hold the b button for the voice assistant on iOS or Android.10Reviewheadphonecheck.com/test/beats-solo-4Read 10 October 2026Google Assistant works with a button press plus the voice command. Hey Siri works hands-free.

Comfort and build

Headband type
Padded9Measurementsoundguys.com/beats-solo-4-review-115347Read 10 October 2026The band has somewhat thin padding where it meets the skull.
Headband material
Metal with soft material underside8Spec databasesoundguys.com/product/beats-solo-4Read 10 October 2026Headband material: metal with soft material underside
Frame material
Metal headband and hinges, plastic ear cups10Reviewheadphonecheck.com/test/beats-solo-4Read 10 October 2026Metal headband and hinges. Ear cups are plastic per SoundGuys.
Ear cup material
Plastic8Spec databasesoundguys.com/product/beats-solo-4Read 10 October 2026Chassis material: plastic
Ear pad material
Foam with PU leather8Spec databasesoundguys.com/product/beats-solo-4Read 10 October 2026Ear cup material: foam, PU leather9Measurementsoundguys.com/beats-solo-4-review-115347Read 10 October 2026Foam earpad ensconced in fake leather
Replaceable ear pads
No10Reviewheadphonecheck.com/test/beats-solo-4Read 10 October 2026The UltraPlush ear pads are fixed and cannot be replaced.
Ear pad attachment
Not available
Ear pad opening
Not available
Ear tips included
Not available
Dust and water rating
Not available
User-replaceable parts
Not available

Software

Companion app
Beats app3Owner's manualsupport.apple.com/guide/beats/use-beatssolo4-dev484e78f99/webRead 10 October 2026The Beats app is for Android. Apple devices use system settings.9Measurementsoundguys.com/beats-solo-4-review-115347Read 10 October 2026Beats app for Android: firmware updates, Find My Device, call control customization
App platforms
Android3Owner's manualsupport.apple.com/guide/beats/use-beatssolo4-dev484e78f99/webRead 10 October 2026This guide is also for the Beats app on Android.
User firmware updates
Yes2Maker product pagebeatsbydre.com/support/headphones/solo4Read 10 October 2026Firmware updates are delivered automatically on an Apple device. On Android, use the Beats app.

Dimensions and weight

Headset weight
217g(7.7 oz)1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026Weight: 217 g / 7.65 oz
Headset dimensions
Not available

Certifications

Hi-Res Audio
Not available
Communication certifications
Not available
FCC ID
BCGA31405Maker spec sheet (PDF)beatsbydre.com/content/dam/beats-support/global/product-safety-and-handling/solo4/solo4-sh-ee.pdfRead 10 October 2026FCC ID: BCGA3140
Other certifications
ISED Canada (IC: 579C-A3140)5Maker spec sheet (PDF)beatsbydre.com/content/dam/beats-support/global/product-safety-and-handling/solo4/solo4-sh-ee.pdfRead 10 October 2026IC: 579C-A3140

In the box

In the box
Beats Solo 4 headphones, Carrying case, USB-C to USB-C cable for charging and audio, 3.5 mm analog audio cable, Quick Start Guide, Warranty card1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026
Cables included
TypeCount
USB-C to USB-C cable for charging and audio1
3.5 mm analog audio cable1
Source1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026Cable lengths are not published.
Carrying case
Soft1Maker product pagebeatsbydre.com/headphones/solo4-wirelessRead 10 October 2026Carrying case in the box. SoundGuys and HeadphoneCheck describe it as a soft fabric case.

Warranty

Manufacturer warranty (source market)
1year6Maker product pageapple.com/legal/warranty/products/accessory-warranty-english.htmlRead 10 October 2026Apple One-Year Limited Warranty for Apple-branded and Beats-branded hardware. English legal page. Statutory rights are excluded.

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Sources

We read 14 sources for this headset. The numbers match the markers in the sheet.

  1. Read 10 October 2026Backs 28 fields
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