... V4.0 class2 (also compliant Bluetooth 2.1+EDR) 2.OS supported :windows 7, vista ,xp ... .The product supports Bluetooth® Enhanced Data Rate (EDR) and delivers up to 3 Mbps data rate for ... also compliant Bluetooth 2.1+EDR)OS supported :windows 7, vista ,xpPlug and playDual-mode Bluetooth low energy ... Find me, Proximity, Generic Attribute Profile Bluetooth 2.1+EDR Support A2DP, AVRCP, DUN-GW, HSP, HFP ...