Bluetooth USB 2.0 Micro Adapter Dongle Compliant with Bluetooth V2.0/V1.2, up to 3 times faster than the old bluetooth V1.2 adapters. Convert non-bluetooth enabled PCs to bluetooth enabled within seconds. Great help for wireless connection with other bluetooth devices like mobile phones, PDAs and PCs for data transfer, networking, dial-up/fax functions. Support WIn98/ME/2000/XP/Vista. Working distance up to 20 meters with no obstructions.