J-DEAL&reg; 2-in-1 Bluetooth Audio Transmitter Receiver Audio Music Streaming Switchable Bluetooth Adapter Wireless Audio Adapter With 3.5mm Stereo Output Turn your regular stereo audio devices into a Bluetooth-enabled, wireless streaming machine thru 3.5mm audio-out jack. Work with any type and brand of device such as TV, PC, CD player, iPod, MP3/MP4 etc. Ideal For Any Powered Speakers Or Devices Using Standard RCA Or 3.5mm Jack Or AD2P Bluetooth. Bluetooth 3.0 with A2DP for high quality audio sound, built in battery for portable use, or fast-charging it through the USB cable, BUT, it can not be used while charging! Portable size. One-button switch to shift between transmitter(TX) and receiver(RX) mode Bluetooth Transmitter: add wireless function to your TV, PC, MP3 player, DVD player to enjoy wireless music and sounds. Bluetooth Receiver: turn any speakers, headphones, stereo system to Bluetooth enabled