Makes Your Non-Bluetooth Windows Computer Bluetooth-capable, and control your iPhone or iPad from your pc via AirDroid Cast!*Driver is required, download here and install to activate it.Features:1. Advanced Bluetooth 5.0, Bluetooth low energyFast and further working distance than Bluetooth 4.0, with an unobstructed transmission distance of up to 20m. The built-in chip gives high sensitivity, fast transmission, and stable connection with devices.it can Low Energy Consumption, Stable Reception, and Wide Compatibility. 2. Compact and DelicateNon-slip stripe design keeps it from falling while provides a great appearance. The small size allows you to get plugged into a computer/laptop without blocking surrounding USB ports, you can leave it on your pc and no need to remove it. 3. Widely CompatibleCompatible with downward Bluetooth versions including 4.2/4.1/4.0.FAQs:Q: Can the Bluetooth Adapter work with macOS?A: No, it only works on Windows.Q: Do I need to install a driver for the Bluetooth Adapter?A: Yes, you need to download the driver here to activate it.Q: Can the Bluetooth Adapter support more than one device at a time?A: No, It only can support one device's Bluetooth connection.Further questions, please feel free to contact us.