TV connected to Bluetooth earphones, audio and video only transmitted to Bluetooth earphones to avoid disturbing family and enjoy alone Portable Mini Bluetooth Adapter You can put the mini Bluetooth adapter into your backpack or laptop bag and enjoy music and anywhere. USB power supply, completely solving the problem of low battery. One meter audio cable to avoid adapter being unable to use due to insufficient length The transmission mode wirelessly transmits audio from non Bluetooth , home stereo systems, or CD players to Bluetooth headphones, Bluetooth speakers, and Bluetooth receivers The reception mode will wirelessly transmit audio from Bluetooth enabled phones, tablets, or computers to car audio, wired speakers, or headphones Material: ABS colour: As shown Package Contents: 1 x Usb Bluetooth 5.0 Transmitter Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.