... ,Bluetooth Dongle with different colors 2,LED indication 3,128-bit secure encryption usb bluetooth dongle v1.21,Bluetooth ... colors2,LED indication3,128-bit secure encryption Features:usb bluetooth dongle v1.2Compliant with Bluetooth V2.0 ... operationPowered by PCFull speed USB interface, compliant with USB 2.0LED indicationSoftware upgradeableBuilt-in antennaFrequency band: 2.4GHz ISM bandMaximum data ...