Car and Driver Noise Cancelling Over the Head BlueTooth Headset - Black Call waiting, 3-way calling and voice activated dialing (with supported phone) 1-touch answer/end, redial and volume control Over-the-head design with boom microphone fits comfortably on either ear Balanced and lightweightweighs only 1.41 oz. Supported Bluetooth profiles: Hands-Free Profile (HFP), Headset Profile (HSP)