[SHARE THE AUDIO] All 4 headphones come automatically connected to the transmitter, allowing multiple people to listen to a single audio source at their preferred volumes. [SCALABLE TO 100] Connect up to 100 Quartet add-on headphones for the ultimate group listening experience. [ALL-SITUATIONS COMPATIBLE] With optical, AUX, and RCA input options, the Quartet transmitter is compatible with the majority of audio source devices, such as TVs, projectors, mixer boards, etc., making it ideal for any situation from church to silent discos to school classes and more. [NO LIP-SYNC DELAYS] With latencies as low as 30ms, you’ll be able to enjoy a perfectly synced visual & audio experience no matter how many headphones you connect. [SOUNDBAR SUPPORT] The Quartet’s pass-through function allows you to output audio through both the wireless headphones and an external soundbar or stereo AVR simultaneously. › See more product details