HT280 - How to Add More Headphones

You CAN add a 2nd pair of headphones to HT280 and share the audio with a partner, BUT you can ONLY do so with one from another HT280 set; the other headphones will NOT work. You can repeat this procedure and connect with up to 100 HT280 headphones.

Step 1: Turn OFF or UNPLUG the 2nd HT280 Set.

Step 2: Turn the 1st HT280 Set ON (both the headphones AND the transmitter tower.)

Step 3: Turn OFF the 1st HT280 Set (both the headphones AND the transmitter tower.)

Yes, we know this is quite annoying, but please bear with us for a little longer.

Step 4: Get the headphones from the 2nd HT280 set into PAIRING MODE.

Press & Hold the Power button on the headphones for 5 seconds until you see the YELLOW-GREEN LED indicator flashing. (Starting from Batch T23F1, the LED indicator will flash RED & GREEN)

Step 5 (Optional): If you'd like to Connect more Headphones onto HT280...

Please repeat Step 4 on all the HT280 headphones you'd like to add.

Step 6: Get the transmitter from the 1st HT280 set into PAIRING MODE.

Turn the transmitter tower from the 1st HT280 set ON (ONLY the transmitter. Keep the headphones OFF.) It will enter pairing mode and the POWER indicator on transmitter will start flashing BLUE rapidly. (Starting from batch T23F1, the TRANSMIT LED indicator on the transmitter will flash GREEN rapidly) 

Step 7: Give them a few seconds to connect.

Once connected, the RED LED indicator on headset will turn YELLOW-GREEN.

And voila! You now have two or more headphones connected to the 1st transmitter.

If you're still having trouble with this, please contact us at support@avantree.com.

Important Note:

Starting from Batch T23F1, we have upgraded the headphone chipset. Please check the batch number of your transmitter. Units manufactured before June 2023 (Batch No. T15A1–T23E5) are not compatible with the new headphones.