Avantree Quartet Wireless Headphones 4 Pack, Excellent HD Sound, Up to 100 Meters, Quiet Disco Party Package, 2 EQ Modes, Assistive Listening System for Outdoor Movie School, Church, TV

["Share Audio"] Would you like to host a backyard movie party without disturbing your neighbors? The Avantree Quartet is the perfect gadget for you! It allows multiple headphones to be connected to ONE AUDIO SOURCE and works with no lip-sync delay. While the set comes with only 4 headphones, you can independently purchase additional units and connect up to 100 pairs to the same transmitter. ["Independent Volume Control"] The volume isn't loud enough, but nobody in your group minds? Don't worry, each wired headphone in the Avantree Quartet set has independent volume control; you can adjust the volume on your device at any time without affecting the other users (also known as other headphones) connected to the same transmitter. ["Wide Compatibility"] The Quartet's wireless transmitter can transmit audio from any audio source device that outputs audio through an OPT, AUX, or RCA jack – TVs, projectors, stereo AV receivers (via 6.35mm adapter), audio mixer, Blu-ray player, and more. Feel free to use them for churches, silent discos, or even school classes – any situation where you need to connect multiple headphones to the same source. ["Perfectly Synchronized Visual Audio"] The wireless Quartet kit uses 2.4GHz RF technology (NOT Bluetooth); it reduces audio delay to up to 7ms, significantly less than the 220ms of standard Bluetooth and the 40ms of aptX Low Latency. You will NOT experience lip-sync delay, no matter how many devices you connect, making it your top choice for watching TV shows or movies with family and friends. ["Soundbar and AVR Support"] When used on your TV in a family setting, the "Pass-Through" or "Bypass" function of the Avantree Quartet transmitter ensures simultaneous audio output through the wireless headphones AND your external TV speakers like soundbars or stereo AVRs, allowing users without headphones to continue hearing the TV while the Quartet set is in use.