Description: Connect to audio output devices such for TV, iPod, CD player, PC, MP3/MP4, and transmit audio to your stereo, headsets, headphones and speakers Effective diameter range around 10 M (32ft); Easy pairing with stereo headset,headphones,speakers and other stereo receiving devices Totally plug and play, the device is powered by USB and requires no special software or drivers Connect the transmitter to your TV audio jack into the TV and transmit the sound to the headset, just enjoy the shows at late night without disturbing your loved ones, isnt awakened by any TV sound With compact design, it can be used in small space. Audio interface: 3.5 headphone jack. Specification: Version: 2.1 Transmission Distance: 10 Meters Power Supply: USB Colour: Black Size: 6.1cm * 2.6cm * 1.2cm Audio Transmission Protocol: A2DP V1.2 Transmission Rate: 3Mbps Aduio Output Interface: 3.5mm Package Includes: 1 Piece Transmitter 1 Piece RCA2 Turn 3.5mm Audio Cable 1 Piece 3.5mm Male to Male Audio Cable 1 Piece USB Extension Cord