Nano and Mighty UB400 is highly portable and much smaller than a flash drive. Plug and play in Win8/8. 1/10 systems to enjoy a wireless communication with Bluetooth-enabled devices. Connect with Multiple Devices via Bluetooth 4. 0 UB400 supports advanced Bluetooth 4. 0 and enables wireless connectivity with a wide range of devices such as computers, printers, phones, headsets, speakers, keyboards, controllers, etc. Ease of Use Bluetooth 4. 0 - Backward compatible with Bluetooth 2. 0/2. 1/3. 0 Plug and Play - Plug and play in Win8/8. 1/10 systems Design Nano design - Small, unobtrusive design allows you to plug it in and forget it is even there