Bluetooth Adapter 5.3：Adapter applies the latest Bluetooth 5.3+EDR adapter, Bluetooth low energy. With the enhanced Data Rate (EDR) support, Its greatly improved the data transmission rate of Bluetooth technology and operates at the optimal rate of power consumption. It is backward compatible with Bluetooth 4.0/4.2/5.0/5.1/5.3 Dual-mode Bluetooth transfer | FOR WINDOWS 7: The 5.3 adapter is also suitable for Windows 7 systems, but you need to download the driver, download the installer from the link::https://www.dropbox.com/s/3ktdqbq7egr50ee/Rtl5.3%20Driver.zip?dl=0 | PLUG AND PLAY：Windows 11/10/8.1 Plug and Play. Simply plug into your USB port and enjoy automatic installation for setup in under a minute with Plug & Play installation! Made to work flawlessly with Windows 10/8.1/11 | Rotating Antenna: Bluetooth USB antenna high gain dual antenna can rotate 90° vertically and 180° horizontally for better signal and maintain stable Bluetooth connection, it can provide better transmitting and receiving signals from angles | INCREDIBLE RANGE: High performance with a frequency band of 2.402Ghz - 2.4835Ghz, our PC Bluetooth Dongle 5. 3 EDR Adapter is designed for maximum coverage no matter what you’re working with, allowing multiple Bluetooth devices to communicate with each other | If your computer has Bluetooth, please disable Bluetooth first.manage my computer-device management-bluetooth-Right-click and click Disable Bluetooth