Upgraded Bluetooth 5.3 dongleApplies the latest Bluetooth 5.3+EDR adapter, and support Dual Mode (BR/EDR + Low Energy Controller).Quick response and better anti-interference, say goodbye to delay and lag.The anti-interference ability has been increased.Enjoy wireless desktop,Operate with flexibility and ease. Plug & PlayThis USB wireless adapter is plug and play,no need to install driversyou don't need to worry that you can't download the driver from the mini CD because your computer doesn't have a CD-ROM. Simple and easy to use. Stable & FastBluetooth 5.3 improves the stability of the connection and reduces the possibility of signal interruption. In open space, in open space, the maximum transmission rate can reach 3 Mbps and the transmission distance can reach 66 feet (20 meters) (Note: the effective range is affected by physical barriers and radio interference).