Bluetooth Standard: Bluetooth 5.0 Symbol rate: 3Mbps Receiving range: 0-20M Chip: RLT9761B Compatibility: Support All Windows /XP/Vista Application: wireless mouse/keyboard/pc Feature 1: bluetooth usb adapter Feature 2: bluetooth adapter usb 5.0 Feature 3: usb bluetooth 5.0 Feature 4: bluetooth dongle 5.0 Feature 5: bluetooth adapter 5.0 Usage2: Bluetooth 5.0 Adapter,Bluetooth Music Adapter Usage3: Wireless USB Bluetooth Adapter 5.0 Usage4: Adaptador Bluetooth Transmitter For Computer PC Laptop Colour:Black Material:ABS Size:30*17*6mm Package Contents: 1 * Bluetooth adapter 1 * CD Only the above package content, other products are not included. Note: Light 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.