Package Includes: Jabra Extreme2 Bluetooth Travel/wall charger 1-Ear Hook 1-Ear Gel User Guide/Manual Specifications: Optimized noise cancellation for reduced background noise and excellent call clarity under any environtment Noise Blackout 3.0 dual microphone technology and wind-noise reduction technology to be heard clearly by the person they are talking to HD Voice technology for exceptional sound quality Voice Control 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 Transmits music, podcasts and GPS directions with A2DP technology Soft ear cushion for all-day comfort Up to 5.5 hours of talk timeand UP to 10.5 days of standby time Noise reduction by Active Noise Cancellation Rechargeable battery with charging from AC charger (supplied) -or PC using a USB cable (NOT INCLUDED) Supported Bluetooth profiles: HFP, HSP, A2DP, AVRCP, PBAP Operating range up to 10 meters (approximately) Make and answer calls just using your voice Last number redialing and call back last number Connect to two active Bluetooth devices at the same time Tells you who is calling* * Dependent on phone type