2 IN 1 Bluetooth 5.0 Transmitter Receiver Wireless Audio Aux 3.5mm Adapter For TV Computer Speaker Car Stereo 3.5mm AUX Jack RCA Adapter

1, Super-Portable Audio-Streaming Power: The KN321 is just 44mm 1.73 across and weighs only 18g 0.63oz, but has got powerful wireless audio streaming capabilities. Slip this transmitter/receiver into your backpack or laptop bag and take it on-the-go without the slightest effort. 2, Shutdown: Press and hold the power on/off button until the LED is off 3, Plug one end of the audio cable into the audio output of the devices and the other end into the audio of the KN321.