Wireless Earbuds
Sennheiser MOMENTUM True Wireless 4
8.5SoundGuys scoreRead our review ›
$179.95at Amazon
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1 / 7Anker Soundcore
Anker Soundcore AeroFit Pro
Safety first, sound quality second.
Noise Isolation / ANC & sound
3.7/ 10
3.7
0.010.0
A 3.7 puts its noise isolation / ANC in the bottom third of wireless earbuds we've measured.
Measured on 133 of the 271 we've cataloged.
2.3/ 5
SoundMDAQS Overall2.3
1.05.0
A 2.3 puts its audio quality in the bottom 10% of wireless earbuds we've measured.
Measured on 64 of the 271 we've cataloged.
Key specs
Battery Life Earbuds
14 hoursAbove average14 h
3 h16 h
above average for wireless earbuds — based on 243 of 271 we've cataloged.
Battery Life With Case
34 hAbove average34 h
7 h60 h
above average for wireless earbuds — based on 245 of 271 we've cataloged.
IP Rating
IP55IPX433%IP5516%IP5415%IPX512%
IPX5 appears on 12% of the 244 wireless earbuds we've cataloged (of 271).
Noise Cancellation Type
AdaptiveActive61%Passive14%None9%Adaptive8%
Adaptive appears on 8% of the 172 wireless earbuds we've cataloged (of 271).
Battery
- Battery Life Earbuds
- 14 hours
- Battery Life With Case
- 34 h
- Charging Method
- USB-C, wireless
- Full Charge Minutes
- 60 min
- Battery Life Wireless
- 7 h
- Charging Case Capacity
- 750 mAh
- Earbud Capacity
- 105 mAh
- Fast Charging
- Yes
Build
- IP Rating
- IP55
- Sweat Resistance
- Yes
- Material Case
- Plastic
- Material Chassis Primary
- Plastic with titanium wire
Sound
- Noise Cancellation Type
- Adaptive
- Ambient Mode
- Adjustable level
- Driver Count
- 1
- Driver Size
- 11.8 mm
- Driver Type
- Dynamic
- Frequency Response Signature
- V-shaped
- Sensitivity
- 89 dB/mW
Connectivity
- Bluetooth Version
- 6.1
- Bluetooth Codec
- SBC, AAC, LDAC
- Bluetooth Range
- 10 m
- Connection Type
- Bluetooth
- Latency
- 200 ms
- Multipoint Devices
- 2 devices
Design
- Earbud Form Factor
- Over-ear
- Color Options
- Black, purple, white
- Wearing Style
- Ear hook
- Weight With Case
- 222.3 g
Features
- Companion App
- Yes
- Control Type
- Physical buttons
- Eq Customization
- Yes
- Find My Device
- Yes
- Gaming Mode
- Yes
- Auto Connect
- Yes
- Auto Pause
- No
- Fitness Tracking
- No
- Mono Mode
- Yes
- Spatial Audio
- Yes, head tracking
- Voice Assistant Support
- Not specified
Identity
- Model Number
- A3871
Microphone
- Count
- 4
- Microphone
- Yes
- Wind Noise Reduction
- Yes
- Noise Reduction Type
- Active
Release
- Date
- November 3, 2023
- Msrp Usd
- 179.99 USD
- Year
- 2026
SoundGuys review
Read the full review ›Isolation3.7
Battery life9.0
Comfort & fit6.5
Connectivity9.0
Design6.5
Portability8.0
The verdict
The Anker Soundcore AeroFit Pro open-ear earbuds are designed with outdoor athletes in mind. The purpose of an open-ear design is to keep you aware of your surroundings while listening to music and exercising in busy environments. While the earbuds accomplish precisely this, it's important to remember the design prioritizes letting the outside world in over a full and immersive listening experience.
✓What we like
✓Secure fit
✓IPX5 protection rating
✓Allow you to maintain awareness naturally
✕What could be better
✕Lack of good-sounding preset EQs
✕Custom EQ is not very powerful
✕No "previous track" control option
Lab data
How we test ›Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.
Anker Soundcore AeroFit ProSoundGuys Headphone Preference Curve
Measured frequency response (dB) against the SoundGuys house target — the dashed curve. The closer the measured line tracks the target, the more neutral the tuning; peaks ride above the target, dips fall below it.
Frequency response — measurement data
| Frequency (Hz) | Response (dB) |
|---|---|
| 20 | -34.7 |
| 25 | -32.2 |
| 32 | -28.7 |
| 40 | -24.4 |
| 50 | -20.4 |
| 63 | -17.1 |
| 80 | -13.6 |
| 100 | -11.0 |
| 125 | -9.1 |
| 160 | -8.2 |
| 200 | -8.0 |
| 250 | -7.1 |
| 315 | -5.7 |
| 400 | -4.6 |
| 500 | -3.8 |
| 630 | -3.0 |
| 800 | -1.6 |
| 1000 | 0.0 |
| 1250 | 1.4 |
| 1600 | 2.8 |
| 2000 | 7.1 |
| 2500 | 10.9 |
| 3150 | 2.3 |
| 4000 | 1.9 |
| 5000 | 7.3 |
| 6300 | 7.3 |
| 8000 | 3.3 |
| 10000 | -9.1 |
| 12500 | -17.5 |
| 16000 | -22.1 |
| 20000 | -37.6 |
Anker Soundcore AeroFit Pro
Passive isolation (dB) with ANC off — how much ambient noise the fit blocks on its own. Higher on the chart means more attenuation.
Passive isolation — measurement data
| Frequency (Hz) | Attenuation (dB) |
|---|---|
| 21 | 0.1 |
| 26 | 0.1 |
| 33 | 0.1 |
| 41 | 0.1 |
| 52 | -0.0 |
| 65 | -0.0 |
| 82 | -0.0 |
| 103 | -0.0 |
| 130 | -0.0 |
| 163 | -0.1 |
| 205 | -0.0 |
| 259 | -0.1 |
| 325 | -0.1 |
| 410 | -0.1 |
| 516 | -0.2 |
| 613 | -0.3 |
| 772 | -0.5 |
| 972 | -0.7 |
| 1220 | -1.2 |
| 1540 | -1.7 |
| 1940 | -3.3 |
| 2440 | -1.4 |
| 3070 | 4.3 |
| 3870 | 4.3 |
| 4870 | 0.1 |
| 6130 | 11.6 |
| 7720 | 7.3 |
| 9720 | 6.3 |
| 12200 | -2.6 |
| 15400 | 0.2 |
| 19400 | 0.3 |
Anker Soundcore AeroFit Pro
3.1
2.4
1.7
2.3
Multi-Dimensional Audio Quality Scores (1–5), modeled from the measured response. Higher is better across timbre, distortion, and immersiveness — add other models to see where this one lands.
Video reviews and comparisons for this product.
Features & Opinions
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