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TV and audio / Earbuds

soundcore P40i
Form factor
In-ear
ANC
Yes
Battery life
12h
With case
60h

84 of 166 fields known.

At a glance

All specs

SourceCalculated

General

Series
Not available
Announced
Not available
Predecessor
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
Segment
Not available

Design

Form factor
In-ear7Reviewrtings.com/headphones/reviews/anker/soundcore-p40i-true-wirelessRead 30 September 2026Type: In-ear
Bud shape
Stem1Maker product pageus.soundcore.com/products/p40i-a3955011Read 30 September 2026Product photos show stem buds
Use one bud alone
Either bud5Maker product pageankernordics.com/products/p40i-a3955011Read 30 September 2026FAQ: either earbud can be used on its own
RGB lighting
Not available

Drivers and sound

Driver type
Dynamic3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Specifications table (PDF page 7): 11 mm dynamic driver.
Driver size
11mm
Drivers per bud
1
Diaphragm material
Not available
Frequency response
Min20 HzMax20 kHz3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Specifications table (PDF page 7): 20 Hz to 20 kHz.
Sensitivity
Not available
Sensitivity reference
Not available
Max sample rate
Not available
Max bit depth
Not available
Adaptive EQ
Not available
Onboard EQ
Not available
Custom EQ bands
Not available
Volume limit
Not available

Spatial audio

Spatial audio
Movie mode4Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Guide.pdfRead 30 September 2026App settings guide pp 3/6: Movie mode gives a 3 D sound effect.
Head tracking
Not available

Noise cancelling

ANC type
Not available
ANC microphones in both earbuds
Not available
Adaptive ANC
Yes3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Modes (PDF page 5): noise cancellation with automatic strength depending on ambient noise.
Automatic ANC and transparency blend
Not available
Conversation detection
Not available
Wind noise reduction
Yes5Maker product pageankernordics.com/products/p40i-a3955011Read 30 September 2026Maker P40i FAQ explicitly gives the Wind Noise Reduction app setting.

Measured

Frequency response notes (measured)
Boosted bass sound signature. The response stays close to its bass-heavy tuning, with treble variations that can veil detail or brighten sibilants. SoundGuys tested a purchased A3955 on firmware 1.67. With its Default profile, its B&K 5128 measurement shows a bass peak roughly 12 dB above the SoundGuys preference target around 60 Hz and a broad treble peak about 5 dB above target around 3-5 kHz. These are local peaks, not regional bass/treble averages. The two labs use different targets.7Reviewrtings.com/headphones/reviews/anker/soundcore-p40i-true-wirelessRead 30 September 2026Our Verdict: Audio Reproduction Accuracy21Reviewsoundguys.com/anker-soundcore-p40i-review-143328Read 7 October 2026Added SoundGuys paragraph only. Actual lab FR against its stated preference curve, Default profile, purchased exact A3955, firmware 1.67. General documented rig B&K 5128, B&K 1704C-102 and SoundCheck. Exact host/codec/test level unstated. Bass 12 dB is a local peak, not the existing RTINGS regional amount 9 dB. Existing RTINGS text/figures retained.22Reviewsoundguys.com/how-we-testRead 7 October 2026Reviewer official method: B&K 5128 fixture, powered by B&K 1704C-102, SoundCheck-controlled measurement. Target is SoundGuys preference curve.
Bass amount (measured)
9dB7Reviewrtings.com/headphones/reviews/anker/soundcore-p40i-true-wirelessRead 30 September 2026Public summary: Very Emphasized (9 dB). Test bench 2.3, Black unit. Full results are behind a paywall and were not read
Treble amount (measured)
5dB7Reviewrtings.com/headphones/reviews/anker/soundcore-p40i-true-wirelessRead 30 September 2026Public summary: Very Emphasized (5 dB)
Deviation from target (measured)
Not available
Consistency between fittings (measured)
Not available
Harmonic distortion (measured)
Not available
Sound leakage (measured)
Not available
Noise isolation (measured)
Not available
Noise isolation, best (measured)
Not available
Passive isolation (measured)
Not available
Mic low-frequency extension (measured)
Not available
Mic high-frequency extension (measured)
Not available
Mic speech-to-noise ratio (measured)
Not available
Latency (measured)
Not available
Bluetooth latency, worst (measured)
Not available
2.4 GHz latency, worst (measured)
Not available
Latency in game mode (measured)
Not available
Battery life (measured)
Hours (h)
9.3
Longest tested use per charge
9.3h
Battery life with case (measured)
Not available
Full charge time (measured)
Not available
Weight per bud (measured)
Not available

Microphones and calls

Voice microphones in both earbuds
61Maker product pageus.soundcore.com/products/p40i-a3955011Read 30 September 20262Maker product pageankerjapan.com/products/a3955Read 30 September 2026Call feature: six beamforming microphones across the pair.
Bone conduction voice sensor
Not available
Call audio bandwidth
Not available
Mic mute control
Not available
Sidetone
Not available

Connectivity

Chip
Not available
Bluetooth profiles
Not available
LE Audio
Not available
Auracast
Not available
Multipoint
Yes3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Multipoint instructions connect two devices simultaneously. (PDF page 4)
Multipoint devices
23Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Multipoint chapter: connects to two devices simultaneously.
Multipoint with LDAC
Not available
Paired devices remembered
Not available
Automatic switching between own devices
Not available
Audio sharing
Not available
Wireless receiver
Not available
Receiver connector
Not available
Simultaneous 2.4 GHz and Bluetooth audio
Not available

Latency

Claimed latency
Not available
Lowest claimed latency
Not available

Compatibility

Connection per platform
PlatformConnectionMicrophone works
WindowsBluetoothYes
macOSBluetoothNot available
AndroidBluetoothNot available
iOSBluetoothNot available
Features that need a specific device
FeatureNeeds
Google Fast PairCompatible Android device.
HearID Sound and custom sound settingssoundcore app on iOS or Android. Firmware must be updated as instructed by the maker.
Game mode and Movie modesoundcore app.
Custom touch controlssoundcore app. Single tap cannot be assigned Voice Assistant.
Find Earbuds audible locatorEarbuds within the Bluetooth connection range. This is a local sound locator, not a tracking network.
Microphone in Windows conferencing appsSelect soundcore P40i Hands-Free as the app microphone and speaker.
Official licence
Not available

Battery and charging

Battery per bud
60mAh3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Specifications table (PDF page 7): 60 mAh x 2 earbuds.
User-replaceable earbud battery
Not available
Claimed battery life
ModeIncludes case rechargesHours (h)
ANC offNo12
ANC offYes60
ANC onNo10
ANC onYes50
TransparencyNo10
TransparencyYes50
CallNo7
Longest claimed use per charge
12h
Playback per charge with ANC (claimed)
10h
Playback per charge without ANC (claimed)
12h
Total with case (claimed)
60h
Total with case and ANC (claimed)
50h
Talk time (claimed)
7h
Charging guidance
Not available
Quick charge time
10min3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Manual page 3 charging diagram: 10-minute charge for 5 hours of playback. ANC state unspecified.
Earbud playback after quick charge
5h3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Manual page 3 charging diagram: 10-minute charge for 5 hours of playback. ANC state unspecified.

Charging case

Case battery
800mAh3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Specifications table (PDF page 7): 800 mAh case.
User-replaceable case battery
Not available
Wireless charging power
Not available
Speaker in case
Not available
Screen on case
Not available
Case works as audio transmitter
Not available

Controls

Controls
Touch3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Manual page 1 overview: touch control area.
Earbud volume control
Touch5Maker product pageankernordics.com/products/p40i-a3955011Read 30 September 2026FAQ: volume on the buds is set up in the app under Controls, Customize Volume Adjustment

Sensors and health

In-ear detection
Not available
Heart rate sensor
Not available
Skin temperature sensing
Not available
Hearing aid feature
Not available
Medical clearances
Not available
Hearing protection
Not available
Health features
Not available

Fit and durability

Ear tips included
XS, S, M, L, XL3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3955Manual.pdfRead 30 September 2026Manual page 2 fit diagram: XS, S, M, L and XL tips.
Stabilisers
None7Reviewrtings.com/headphones/reviews/anker/soundcore-p40i-true-wirelessRead 30 September 2026They lack wings or stabilizers
Dust and water rating, case
Not available
Water resistance depth
Not available

Software

Finding network
Not available
Precision finding
Not available
Live translation
Not available

Dimensions and weight

Weight per bud
5g(0.2 oz)2Maker product pageankerjapan.com/products/a3955Read 30 September 2026Product specifications: approximately 5 g per earbud. 58 g with case includes earbuds and is not case-only.
Bud dimensions
Not available
Case weight
Not available
Case dimensions
Not available

Certifications

Hi-Res Audio
Not available
Communication certifications
Not available

In the box

In the box
Earbuds, Charging case, Five sizes of ear tips, USB-A to USB-C cable, Safety manual, Quick start guide2Maker product pageankerjapan.com/products/a3955Read 30 September 2026Package contents, translated from Japanese product page.

Warranty

Manufacturer warranty (source market)
2years6Owner's manualcdn.shopify.com/s/files/1/0519/2355/0368/files/51005004317_V2_soundcore_Headphone_A3955_EU_Offline_QSG_Safety_90x90mm_20240117.pdfRead 30 September 2026EU safety guide warranty page: 24-month limited warranty. Japan has 18 months plus 6 months after Anker membership registration. Market-specific warranty.

Compare with

Pick a earbuds to see both side by side. Differences are marked yellow.

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Variants

Each variant lists only what differs from the specs above.

Model numberGTINMarketsColours
A3955Z11194644186340USBlack
A3955Z21194644190989USOat White
A3955Z31194644190965USNavy Blue
A3955ZQ1194644190958USPurple
A3955N11Not availableJPBlack
A3955N21Not availableJPOff White
A3955N31Not availableJPNavy
A3955NQ1Not availableJPPurple

Sources

We read 24 sources for this earbuds. The numbers match the markers in the sheet.

  1. Read 30 September 2026Backs 10 fields
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