Adapter Wireless o Transmitter Receiver Adapter Practical for Computer for Car Feature: 1. It can let the computer have the bluetooth function, turn on the computer in seconds, and respond quickly without stalling. 2. With colorful atmosphere lights, you can freely switch the colorful atmosphere lights. 3. Bluetooth transmission mode: the red light is on, the computer transmits to the bluetooth headset, bluetooth o. 4. Bluetooth receiving mode: blue light is on, receiving music, input earphone, stereo 5. Built& 8209;in high& 8209;quality chip, more powerful performance, more stable connection, and three& 8209;in& 8209;one function of receiving + transmitting + mic call. Specification: Item Type: Adapter Material: ABS Bluetooth Version: V5.0 Input Interface: 3.5mm / 0.1in Bluetooth Mode: Bluetooth Receiving / Transmitting Interface Type: AUX+USB Interface Output Distance: Approx. 10m / 32.8ft Power Supply: USB / Car Charger / Charger / Computer Output Parameters: DCV5.0 / 2.1A Package List: 1 x o Adapter 1 x o Cable 1 x Manual How to use:Plug and play.