Feature:1. Support System: Adapter is easy to operate, plug and play, and has strong compatibility. It supports for Windows7, for WIN8, for WIN10, for Vista, for XP, for OS X and other systems.2. BT 5.0 Chip: USB audio receiver uses BT 5.0 high performance chip to increase wireless connection speed and improve stability3. Wireless Transmission: Solve the problem that the computer does not have BT, realize BT wireless transmission, and have no effect on WHF signals.4. Lightweight and Portable: USB adapter is light in weight, small in size, easy to carry and store, convenient and fast, and stable in performance.5. Scope of Application: Audio adapter supports connecting BT speakers, earphones, mice, keyboards, printers and other devices to enjoy the free of wireless.How to Use:plug and playSpecification:Item Type: USB Audio ReceiverMaterial: ABSColour: BlackBT Version: V5.0Transmission Distance: Approx. 10-20meters / 10.9-21.9ydSupport Configuration: Keyboard, Mouse, Speaker, Headset, etc.Compatible Systems: For Windows7, for WIN8, for WIN10, for Vista, for XP, for OS X, etc. Package List:1 xUSB Audio Receiver