... 10M. KeFeatures:Bluetooth V4.0 class2 (also compliant Bluetooth 2.1+EDR)OS supported :windows 7, vista ,xpPlug ... mode Bluetooth low energy radio USB dongleFull speed USB 2.0 interfaceBluetooth end product Bluetooth low energy Support ... rate belt, Find me, Proximity, Generic Attribute Profile Bluetooth 2.1+EDR Support A2DP, AVRCP, DUN-GW, HSP, ... USB2.0 Bluetooth 4.0 Dongle Dual Mode Wireless Adapter