Description <br> 1. Upgrade Bluetooth 5.3+BLE (LMP:12.45) <br> 2. Compatible with Bluetooth versions such as 5.2/5.1/5.0/4.0/3.0/2.0. <br> 3. Low power consumption, low delay and high-definition sound quality <br> 4.Win8.1/10/11 driver-free, plug and play, Win 7 need to install drivers. <br> 5. Connect once, and connect automatically. <br> <br> 6. Support simultaneous connection of multiple devices <br> 7. Wide compatibility (Bluetooth headset/speaker/Bluetooth mouse/keyboard/Bluetooth handle/printer/Android) <br> 8. External dual antennas, 150 meters distance <br> Colour:Black <br> Material:Plastic <br> <br> Package Contents: <br> 1x Bluetooth Dongle Adapter <br> <br> Only the above package content, other products are not included. <br> 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 +/- 1-3cm. <br>