The receiving (RX) signal and the transmitting (TX) signal are integrated and freely switchable, and are suitable for a variety of devices The computer can also be connected to bluetooth, connecting bluetooth earphones, stereos, etc to the shackles of wired, and listen to songs more freely In receiving mode, long press the phone ID key to summon Siri voice assistant, man-machine dialogue, easy to control Equipped with a high-performance Bluetooth 5 1 conversion chip, the signal transmission is more stable and rapid, and delays and freezes are rejected Support high-definition audio decoding, reduce the sound loss and noise floor of wireless transmission, clear sound quality, restore sound details, and enjoy beautiful music Type: Audio AdapterBluetooth version: 5 1 supply interface: USBTransmission distance: 10 metersLine length: 1 meterColour:blackMaterial:ABSPackage Contents:1 x AdapterOnly 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