Jabra SUPREME Bluetooth Headset - Retail Packaging - Black Active Noise Cancellation technology removes background noise so the headset user hear a clear conversation Noise Blackout 3.0 dual microphone technology and wind-noise reduction technology allows the user to be heard clearly by the person they are talking to HD Voice technology for exceptional sound quality Voice Control allows the user to answer or ignore calls by using simple voice commands and Voice Guidance provides spoken caller ID, battery level and connection status Multiuse connects to 2 Bluetooth devices at the same time