Pataco USB 2.0 Bluetooth Dongle. Connectivity technology: Wireless, Host interface: USB. Data transfer rate (max): 3 Mbit/s. Bluetooth version: 2.0+EDR, Frequency band: 2.4/2.48 GHz, Maximum operating distance: 40 m. Bundled software: IVT BlueSoleil V2.3.0. Compatible operating systems: Windows ME/2000/XP/Vista