Quartet 2 - How to Add More Headphones

You can pair up to 100 receivers—including Quartet extra headphones, Harmony extra speakers, or Duet extra headphones—with the Avantree Flex Base transmitter. Once your transmitter is set up, you can easily add more receivers and adjust their volumes independently. Here's how:

1. Put the Transmitter into Pairing Mode:
Turn on the transmitter, then press and hold the button until the “Add Devices” LED begins flashing.

2. Put the New Headphones into Pairing Mode:

Turn on the Quartet-Extra headphones, then hold the OFF/ON/PAIR button in the PAIR position for 5 seconds until the LED flashes blue.

3. Wait for Connection:
Within 3–5 seconds, the LEDs will turn solid, indicating a successful connection.

💡 Tip:
Minimize Interference: Wi-Fi routers, access points, and microwaves operate on the 2.4GHz frequency and can interfere with the signal. Keep these devices at least 2 meters away from your headphones and transmitter for best performance.