Small but incredibly powerful Bluetooth 4.0 adapter with less than 5 ms delay between computer and Bluetooth device and a range of 50 meters. BT0015 can be connected to several devices and thanks to its size, it is perfect to take along for the ride. With Bluetooth 4.0 and its low energy consumption, the battery lasts longer in the accessory/headset etc. Compatible with Windows 8 and Windows 10.   - Bluetooth v4.0 (backwards compatible) - Transmission frequency : 2.402-2.480 ISM Band - Transmission speed: Mbit/s - Max. distance: 50 m - Chipset: CSR / BC8510 - IVT 10.0 8 (which supports Windows 10) - Connection: USB 2.0 (backward compatible with USB 1.1) - Compatible with: Win XP, Vista, Win 7, Win 8, Win 10 and Plug&Play - Size: 23 x 14.2 x 4.5 mm