SoundCore Life Note True-Wireless Earbuds A3908 User Manual
- June 13, 2024
- Soundcore
Table of Contents
SoundCore Life Note True-Wireless Earbuds A3908
USER MANUAL
Charging
- Remove the protective film from the earbuds when using for the first time.
- Fully charge both the earbuds and the charging case before the first-time using.
- To prevent damage, use the provided USB-C cable.
- Fully dry off the earbuds and the USB port before charging.
LED behaviour (Earbuds & Charging case)
| Steady red | Low battery |
|---|---|
| Steady white | Being Charging |
| Light off | • Fully charged |
• Remaining battery >10% (when in use)
Powering On/Off
The earbuds will automatically power on when taken out of the charging case and power off when placed back into the charging case.
- To manually power on, press the multi-function button on either one of the earbuds.
- To manually power off, press and hold the multi-function button on either one of the earbuds for 3 seconds.
LED behaviour (Earbuds)
| ON | Steady white for 1 second |
|---|---|
| OFF | Steady red for 1 second |
Pairing
True Wireless Stereo Connection
The right earbud will automatically connect with the left earbud when taken
out of the charging case.
LED behaviour (Earbuds)
| Breathing white | TWS connecting |
|---|---|
| Steady white for 1 second | TWS connected |
- When powered off, press and hold the multi-function button on both earbuds for 1 second, the earbuds will enter TWS connecting mode.
- When powered on and connected, place either one of the earbuds into the charging case and close the case, you can keep using the other one.
- When powered on and connected, if either one of the earbuds is out of battery and powered off, you can keep using the other one.
- When you are on a call, press and hold the multi-function button on either one of the earbuds for 1 second, then this earbud will switch to be the primary earbud.
- When you are on a call, place either one of the earbuds into the charging case, the microphone in the other earbud will be activated.
Bluetooth Pairing with your Device
The earbuds will enter pairing mode when powered on. You are requested to confirm the connection when you see a pop-out screen.
LED behaviour (Earbuds)
| Flashing white | Bluetooth pairing |
|---|---|
| Steady white for 1 second | Bluetooth connected |
In the pairing process, some devices are incompatible with Qualcomm True Wireless Primary- Secondary dual pairing names, it may notice “connection unsuccessful” when you tap “Pair” or even no screen popped out. Don’t worry and it will not influence the using.
Once successfully paired, the primary earbud connects with your device and transfers signal to the secondary earbud, the latter one will not connect with your device. As a result, in the Bluetooth pairing list on your device, it may indicate that only one side is connected while the other side is not.
- To pair with another Bluetooth device, turn off Bluetooth on the currently connected device first.
- Each time you power on your Soundcore earphones, it will automatically connect to your last successfully connected device if available within the Bluetooth range.
Wearing
1. Choose the ear tips that fit your ears the best.
2. Insert the earbuds into the inner canal of your ears.
3. Turn and find the most comfortable position.
Controls
Reset
Reset the earbuds if the earbuds cannot connect with each other properly or cannot connect with your device properly.
1. Place the earbuds into the charging case and make sure they are being
charged.
2. Press and hold the button on both earbuds for 3 seconds. The LED
indicators will flash red 3 times and then turn white.
All the memory data will be cleared.
Specifications
Specifications are subject to change without notice.
| Input | 5 V 750 mA |
|---|---|
| Rated output power | 7 mW @ 1% THD |
| Battery capacity | 55 mA x 2 (earbuds); 810 mA (charging case) |
| Charging time | 2 hours |
| Playtime (varies by volume level and content) | 7 hours (Totally 40 hours with |
the charging case)
Driver size| 6 mm × 2
Frequency response| 20 Hz – 20 kHz
Impedance| 16 Ω
Bluetooth version| V 5.0
Bluetooth frequency| 2402-2480 MHz
Bluetooth profile| AVRCP1.6, A2DP1.3, HFP1.7, HSP1.2
Audio codec format| SBC, AAC, aptX
Bluetooth range| 10 m / 33 ft
Qualcomm® aptXTM Technical specifications
Compression ratio: 4:1
Word depth: Support 16bit and 24bit
Decoding delay: Sample rate 48kHz<2ms
Dynamic range: 16bit>92dB, 24bit>120dB
Data rates: 352kbps
Decode mode: Stereo
Qualcomm aptX is a product of Qualcomm Technologies, Inc. and/or its
subsidiaries.
Qualcomm is a trademark of Qualcomm Incorporated, registered in the United
States and
other countries. aptX is a trademark of Qualcomm Technologies International,
Ltd., registered
Support Videos
How to Clean Your Headphones
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