HT4186-Q – How to Re-pair, Connect, and Lock the Headphones to the Transmitter?

Before You Start: If your NB16-Q headphones are not connecting to the Audikast-3 transmitter, their Bluetooth connection may have been lost or interrupted.

Turn OFF the TV and nearby Bluetooth devices. Keep the headphones and transmitter 1–3 feet apart.

Step 1 – Restart Devices & Check Headphone Connection

1. Turn OFF the TV, transmitter, and headphones.
2. Keep the TV OFF, then turn ON the transmitter and headphones.
3. Check the headphone LED. Solid Blue - Connected.

If the headphones are not connected, continue to Step 2.

Step 2 – Put the Transmitter & Headphones in Pairing Mode

1. On the transmitter, press and hold the 1 button for 5 seconds, until its LED flashes RED & BLUE.
2. Turn OFF the NB16-Q headphones. Then press and hold the Multi-Function Button (MFB) until the headphone LED flashes RED & BLUE.
3. Keep the headphones close to the transmitter and wait until the LED indicators stop flashing and turn Solid BLUE, confirming a successful connection.

Step 3 – Factory Reset if Pairing Still Fails

If the headphones still won’t connect, factory reset both the headphones and transmitter to clear their previous pairing records.

1. Follow the HT4186-Q Factory Reset Guide to reset both devices.
2. Repeat Steps 1 and 2 to pair them again.

Still Not Connecting?

Contact Avantree Support and include which headphones you’re using and the LED status on the headphones and transmitter.