Introduction
This manual provides comprehensive instructions for the Soundcore by Anker Life A3i Noise Cancelling Earbuds. Please read thoroughly to ensure proper use and optimal performance of your device.
What's in the Box
- Soundcore Life A3i Noise Cancelling Earbuds
- Charging Case
- S/M/L Ear Tips
- USB-C Cable
Key Features
- Superior Sound: Equipped with 10mm oversized drivers and BassUp technology for deep bass.
- Hybrid Active Noise Cancelling (ANC): Reduces external noise by up to 35dB for an immersive listening experience.
- AI-Enhanced Calls: Features 4 dedicated microphones and an AI algorithm for clear voice pickup in noisy environments.
- Extended Playtime: Up to 10 hours on a single charge, and 40 hours with the charging case (ANC off).
- Soundcore App Customization: Access 22 EQ settings and personalize your sound profile.
- Transparency Mode: Allows you to hear your surroundings while listening to audio.
- Fast Charging: 10 minutes of charge provides 2 hours of playback.
- Lightweight Design: Each earbud weighs approximately 5g for comfortable extended wear.
- IPX5 Water Resistance: Protects against sweat, rain, and water splashes.
Setup
Initial Use
Before first use, remove the protective film from the earbuds. Place both earbuds back into the charging case and close the lid. This ensures they are ready for pairing.

Image: Steps for initial setup, including removing protective film from earbuds and placing them into the charging case.
Wearing the Earbuds
To ensure optimal sound quality and noise cancellation, wear the earbuds correctly. Place each earbud into the corresponding ear canal and gently twist to secure a snug fit. Incorrect placement may affect audio performance and active noise cancelling effectiveness.

Image: Visual guide on how to correctly wear the Soundcore Life A3i earbuds for proper fit and sound.
Pairing with a Device
The earbuds feature instant pairing. Once removed from the charging case, they will automatically enter pairing mode or reconnect to the last paired device. To pair with a new device:
- Open the charging case. The earbuds will automatically power on.
- On your device, navigate to Bluetooth settings.
- Select "Soundcore Life A3i" from the list of available devices.
- Once connected, you will hear an audio prompt.

Image: A smartphone displaying a successful Bluetooth connection to the Soundcore Life A3i earbuds.
Operating the Earbuds
Controls
The earbuds feature touch controls for various functions. The default controls are as follows:
| Action | Left Earbud (L) | Right Earbud (R) |
|---|---|---|
| Play/Pause | Press twice | Press twice |
| Next Track | N/A | Press twice |
| Previous Track | Press twice | N/A |
| Volume Down | Press once | N/A |
| Volume Up | N/A | Press once |
| Switch ANC/Transparency Mode | Press and hold for 2 seconds | Press and hold for 2 seconds |
| Answer/End Call | Press once | Press once |
| Reject Call | Press and hold for 2 seconds | Press and hold for 2 seconds |

Image: A visual representation of the touch controls for both left and right earbuds.
Sound Modes
The Soundcore Life A3i earbuds offer different listening modes:
- Hybrid Active Noise Cancelling (ANC): Activates noise reduction to minimize ambient sounds.
- Transparency Mode: Allows ambient sounds to pass through, keeping you aware of your surroundings.
- Normal Mode: Standard audio playback without ANC or Transparency features.
Switch between these modes by pressing and holding the touch control area on either earbud for 2 seconds.

Image: An earbud depicted with a graphic indicating 35dB noise reduction.
Soundcore App
Download the Soundcore app to unlock additional features and customization options, including:
- Access to 22 preset Equalizer (EQ) settings.
- Customizing your sound profile.
- Adjusting touch controls.
- Firmware updates.

Image: A smartphone displaying the Soundcore application interface with various EQ presets.
Maintenance
Charging
To charge the earbuds, place them into the charging case. The LED indicators on the case will show the charging status. Connect the charging case to a power source using the provided USB-C cable.

Image: Earbuds seated within their charging case, illuminated by blue indicator lights.
Water Resistance
The Soundcore Life A3i earbuds are rated IPX5 water-resistant. This means they can withstand sweat, light rain, and splashes of water. They are not designed for submersion in water.
Cleaning
Regularly clean your earbuds and charging case to maintain optimal performance. Use a soft, dry, lint-free cloth. Avoid using harsh chemicals or abrasive materials.
Troubleshooting
If you encounter issues with your earbuds, try the following steps:
- No Sound: Ensure earbuds are charged, connected to your device, and volume is up.
- Pairing Issues: Turn off Bluetooth on other devices, place earbuds in case, then try re-pairing.
- Poor Sound Quality: Check ear tip fit, clean earbuds, or adjust EQ settings in the Soundcore app.
- Earbuds Not Charging: Ensure charging contacts are clean and the USB-C cable is properly connected.
- One Earbud Not Working: Try resetting the earbuds (refer to Soundcore app or online support for specific reset instructions).
For further assistance, consult the Soundcore app or visit the official Soundcore support website.
Specifications
| Feature | Detail |
|---|---|
| Model Number | A3992 |
| Driver Size | 10 mm x 2 |
| Frequency Response | 20 Hz - 20 kHz |
| Impedance | 16 Ω |
| Bluetooth Version | 5.2 |
| Bluetooth Range | 10 m / 33 ft |
| Battery Life (Earbuds) | Up to 10 hours (ANC off) |
| Total Playtime (with Case) | Up to 40 hours (ANC off) |
| Charging Port | USB-C |
| Water Resistance | IPX5 |
| Item Weight | 2.08 ounces (total) |
| Control Method | Touch |
Warranty and Support
Soundcore by Anker provides an 18-month warranty for the Life A3i Noise Cancelling Earbuds. For warranty claims, technical support, or further inquiries, please contact Soundcore customer service or visit their official website.
You can find more information and support resources at us.soundcore.com.