... usb dongle driver 1,Bluetooth Dongle with different colors 2,LED indication 3,128-bit secure encryption Bluetooth usb ... indication3,128-bit secure encryption Features:Bluetooth usb dongle driverCompliant with Bluetooth V2.0 ... 1 operationPowered by PCFull speed USB interface, compliant with USB 2.0LED indicationSoftware upgradeableBuilt-in antennaFrequency ... W.=3.8kgs Bluetooth usb dongle driver