Bluetooth Receiver And Transmitter,VRunow Wireless Bluetooth 3.5mm Stereo CSR Bluetooth Audio Music Streaming Switchable Transmitter and Receiver 2-in-1 For Our PC,Mobile Phone,TV and Car Bluetooth-enable all 3.5mm media devices (enable Bluetooth receiving: speakers, headphones and more; enable Bluetooth transmission for: MP3, CD / DVD players, e-readers, TVs and more) Battery life for TX mode: about 14 hours; battery life for RX mode: about 14 hours; Charging time: About 2 hours Simple one-button switch to shift between transmitter(TX) and receiver(RX) mode Supported Bluetooth profiles: A2DP; operation range: 33 ft / 10m Package contents: Bluetooth Transmitter and Receiver, 3.5mm audio cable, micro USB cable, instruction manual