So small, but incredibly strong. The USB 3.0 Micro Adapter with Bluetooth v4.0 technology allows a data link in less than 5 milliseconds between your PC or notebook and other Bluetooth-enabled devices and keeps them up to a distance of 50 m. The BT0015 allows a connection with multiple devices and is, because of the size, a perfect companion for traveling. The battery life can be indreased due to low power consumption of Bluetooth 4.0 technology of laptop mice and headsets. Bluetooth v4.0 (Backward compatible) Transmission frequency: 2.402-2.480 ISM Band Datatransfer-Speed: 3 Mbit/s Max. distance: 100 m Chipset: CSR / BC8510 Connector: USB 3.0 (Comp. to USB 2.0 and 1.1) Suitable for Win XP, Vista, Win 7, Win 8, Win 10 and Plug&Play Size: 23 x 14.2 x 4.5 mm