soundcore A3909 Liberty 2 Pro True Wireless Earphones User Manual
- June 12, 2024
- Soundcore
Table of Contents
soundcore A3909 Liberty 2 Pro True Wireless Earphones
Product Information
- Product Name: Soundcore Liberty 2 Pro
- Product Type: True Wireless Earbuds
- Manufacturer: Soundcore
Product Usage Instructions
Charging:
The charging case has four LED indicators to show the battery level:
- <30%: Red LED
- 30% – 70%: White LED
-
70%: Green LED
- 100%: All LEDs will turn off
Powering On/Off:
To power on the earbuds, slide open the charging case. The earbuds will automatically power on. To power off, place the earbuds back into the charging case and close the case. The earbuds will automatically power off.
Pairing:
To pair the earbuds with each other and with your Bluetooth device:
- Slide open the charging case to power on the earbuds. The right earbud will automatically connect with the left earbud.
- The LED behavior of the earbuds will indicate the pairing status:
- Breathing white: TWS connecting
- Steady white for 1 second: TWS connected
- The earbuds will enter Bluetooth pairing mode when powered on. Follow the on-screen instructions on your device to complete the pairing process.
Controls:
All of the controls in stereo mode can be customized in the Soundcore App. The default controls are as follows:
- Play / Pause: Press the button on either earbud
- Next track: Press the button twice on the right earbud
- Previous track: Press the button twice on the left earbud
- Volume up / down: Press the button on either earbud
- Answer / End a call: Press the button on either earbud
- Reject a call: Press and hold the button on either earbud for 1 second
- Activate Siri / Other voice assistant software: Press and hold the button on either earbud for 1 second
Soundcore App:
Make sure to download the Soundcore App for additional features:
- HearID: Personalized sound profile
- UI customization
- EQ settings
- Earbuds firmware update
Reset :
If the earbuds cannot connect with each other properly or cannot connect with your device properly, you can perform a reset:
- Place the earbuds into the charging case and make sure they are being charged.
- Keep the charging case open.
- Press and hold the button on the charging case for 10 seconds until the LED indicators on both earbuds flash red 3 times.
- All the memory data will be cleared.
Specifications:
- Input Rated output power: N/A
- Battery capacity: N/A
- Charging time: N/A
- Playtime (varies by volume level and content): N/A
- Driver size: N/A
- Frequency response: N/A
- Impedance: N/A
- Bluetooth version: N/A
- Bluetooth frequency: N/A
- Bluetooth profile: N/A
- Audio codec format: N/A
- Bluetooth range: N/A
Charging
- Slide to open or close the charging case to activate the LED battery indicator.
- Fully charge both the earbuds and the charging case before the first-time using.
- To preserve battery lifespan, fully charge at least once every 45 days.
- To prevent damage, use the provided USB-C cable.
- You can charge the charging case by using a certified wireless charger (not provided).
- Fully dry off the earbuds and the USB port before charging.
Powering On/Off
Slide to open the charging case, the earbuds will automatically power on.
Place the earbuds back into the charging case and close the case, the earbuds
will automatically power off.
- To manually power on, press and hold the multi-function button on either one of the earbuds for 1 second.
- To manually power off, press and hold the multi-function button on either one of the earbuds for 5 seconds.
LED behavior (Earbuds)
Pairing
True Wireless Stereo Connection
Slide to open the charging case, the earbuds will automatically power on. The
right earbud will automatically connect with the left earbud.
LED behavior (Earbuds)
- 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 behavior (Earbuds)
- 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 the 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, place the earbuds back into the charging case and make sure they are being charged, keep the case cover open, then press and hold the button on the charging case for 3 seconds. The LED indicator on the right earbud will flash rapidly.
- Each time you power on your Soundcore earphones, it will automatically connect to your last successfully connected device if available within the Bluetooth range.
- Mono mode: When Bluetooth connected, you can use either one of the earbuds only by putting the other one back into the charging case and closing the cover.
Wearing
- Choose the ear tips and ear wings that fit your ears the best.
- Insert the earbuds into the inner canal of your ears.
- Turn and find the most comfortable position
Controls
All of the controls in stereo mode can be customized in the Soundcore
App.
Soundcore App
Make sure the earbuds firmware is always the most updated before using.
Download the Soundcore App for HearID, UI customization, EQ settings and earbuds firmware update.
- HearID: HearID maps your personal hearing sensitivity at multiple frequencies and analyzes the results. It tailors the EQ settings and creates a personalized sound profile for you.
- UI customization : In stereo mode, all of the controls can be customized in the App. In mono mode, the controls are fixed.
- EQ settings: There’re more than 20 EQ settings you can choose in the App to optimize your experience while enjoying different music genres.
- Earbuds firmware update: The earbuds firmware can be updated in the App. You will be informed once the new version of firmware is detected when you connect the earbuds with the App.
Reset
- Reset the earbuds if the earbuds cannot connect with each other properly or cannot connect with your device properly.
- Place the earbuds into the charging case and make sure they are being charged. Keep the charging case open, then press and hold the button on the charging case for 10 seconds until the LED indicators on both earbuds flashes red 3 times.
All the memory data will be cleared.
Specifications
Specifications are subject to change without
notice.
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 in the United States and other countries.