USB audio transmitter and receiver for TV power amplifier System audio home Car stereo Description: [ I ] 3,5mm wireless adapter AUX supports both broadcasting and reception, TX RX modes, sound card mode. With it, you can easily and easily upgrade your old speakers or car system audio, allowing you to connect a compatible wireless audio device. [SWITCHING MODE] switching is convenient and fast, RX reception mode: blue light; TX transmission mode: red light; SC sound card mode: green light. Simply connect the AUX car adapters to the AUX port of your device or , then press and hold the multifunction button to switch. Computer port USB for headphones 3.5, audio conversion to audio output of headphones 3.5 via adapter USB. [STABLE CONNECTION] With improved V5.2 technology, the 3,5 mm connector can reduce power consumption, ensure fast and stable sound transmission with clearer quality and low latency. [WIDE COMPATIBILITY] This car is suitable for devices with 3,5 mm interface, the mode is used for car audio, wired speakers, home speakers, speaker amplifiers, headphones, etc., and the mode is suitable for computers, projection instruments, power amplifiers, headphones, speakers, etc. Get rid of the limitations of traditional wired speakers and enjoy wireless music [COMPACT AND PORTABLE] Compact design saves space, is ready to use, easy to carry and use. Size Chart: 3,8 cm x 1,9 cm x 1,1 cm/1,50 inch x 0,75 inch x 0,43 inch The package includes: 1 piece audio