Detailed Product Description Cell Phone Bluetooth Headset Dual-Mic &Noise Filtering + StereoMain Featureso Dual-Mic & ... Earpiece, more popular and comfortable o BLUETOOTH V2.1, higher version, higher tech. o MICRO USB Universal Charging, future ... : V2.1 + EDRBluetooth Profiles Supported: 20: Headset, Handsfree, A2DP, AVRCP 20T: Headset, Handsfree, Multi-pointTransmission Power: Class 2Operation Range: ...