?WORRY FREE CUSTOMER SUPPORT ?The bluetooth transmitter receiver don't need driver, it's Plug and Play. If you ever have a problem with our Bluetooth Adapter, simply click "ask a question" on your order page. We offer 12 month worry free service. ?HIGH COMPATIBILITY?USB bluetooth adapter 5.3 works with 32/64-bit Windows 10/11/8.1/7. It can also take full advantage of bandwidth to connect multiple bluetooth devices simultaneously, such as Bluetooth headsets, speakers mice, keyboards, smartphones. Can work with 7 devices at the same time. Warm Tips: Not applicable for Mac IOS, Linux, TV, Car Stereo. ?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. ?FOR WINDOWS7?:The 5.3 adapter is also suitable for Windows7 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. ?UPGRADED BLUETOOTH 5.3 ADAPTER?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, reaching 3Mbps. It is backward compatible with Bluetooth 2.1/3.0/4.0/4.2/5.0/5.1 Dual-mode Bluetooth transfer.