2.4GHz DIGITAL WIRELESS HEADPHONES FOR TV - voice highlighting & noise reduction tech reduce TV background sounds so TV dialogues are easier to hear through our headphones. Auto signal control tech ensures stable TV audio output, no worries being disturbed by sudden TV volume changes. Compatible with optical, RCA & 3.5mm audio out connectors. ADVANCED 2.4GHZ FHSS TECH,NO PAIRING OR DELAY, LONG TRANSMISSION - Thanks to 2.4GHz automatic FHSS tech, TV headphones wireless promise superior sound reproduction and the strong signal can go through ceilings or walls. You can even walk around in your home to listen. The effective distance up to 164 feet. No need pairing, no lip-sync delay, no need sitting in front of the transmitter at a certain position, no interruption when people passing by. CUSTOMIZE THE SOUND FOR OPTIMIZED LISTENING - You can select TONE to find the optimum parameters to hear the target audio source clearly. The balance control can be practical for people who need