Hama Nano Bluetooth USB Adapter. Connectivity technology: Wireless, Host interface: USB, Interface: Bluetooth 2.1. Data transfer rate (max): 480, 3 Mbit/s. Bluetooth version: 2.1+EDR, Maximum operating distance: 100 m. Dimensions (WxDxH): 23 x 13 x 4 mm, Compatible operating systems: Windows 2000/XP/XP x64 Edition/Vista 32-Bit/64-Bit