Bluetooth 5.0 Adapter with 7 Color RGB LightsBluetooth 5..0 version means low power consumption, faster, plug in the USB port and turn on the seven color RGB light. Click the light button to control the light, it brings you a different connection experience Multiple USB powered devices to connect high compatibilityUSB power adapter, no need to charge! Plug and play, compatible with most smartphones and Bluetooth electronic devices, ideal for home or vehicle audio systems. Excellent performance, 20m distanceThe Bluetooth 5..0 PC adapter receiver has improved anti-interference ability and stability, effectively avoiding problems such as unstable connection and frequent disconnection. It supports transmission distances up to 20 meters. the computer can automatically connect to the Bluetooth device after the first successful connection after startup [2 in 1 Bluetooth Transmitter Receiver with Microphone]: Portable Bluetooth adapter to use as a transmitter or receiver. Red light transmission mode: TV, MP3/MP4, PC, CD player, iPod, etc. Blue Light reception mode: ideal for streaming music at home or in the car.