Fangrui Product Details Fangrui Product Details 5.3 Bluetooth Dual Mode Dual Channel, Compatible With Bluetooth 2.0, 3.0, 4.0, 5.0 And 5.1 Specifications. Intelligent Low-power Chips And Radio Frequency Transceivers Provide Flexible And Powerful Bluetooth Applications With Lower Latency Support Cass2 Power Level 20 Meters Distance (in Open Environment) Support Bluetooth 5.3 Dual-mode Specification (lmp 12.45 True Bluetooth 5.3 Standard) Supports Simultaneous Connection Of Multiple Devices (up To 7 Devices Can Be Connected) Product Name: Usb Bluetooth Adapter Bluetooth Version: 5.3 (ble Low Power Consumption, Low Latency) Transmission Distance: 20 Meters (barrier-free Environment) Supported Protocols: A2dp, , Avrcp, Hid, Acc Colour:black Green Material:abs Package Contents: 1 * Transmitter 1 * English Instruction Manual Only 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 +