Bluetooth headset provides the convenience of one headset for use with multiple devices. Bluetooth mini USB adapter can stay in your laptop USB port for always-ready PC connectivity, or can be stored in the included portable charging case. Smart sensor technology lets you quickly take a call without a click by sensing when you put on the headset and automatically answers PC or mobile calls. Voice command menu lets you use your voice to answer calls, check battery level, redial, put the headset in pairing mode and more. Caller name announcement (mobile only) tells you who is calling without needing to glance at your mobile phone. Enhanced voice alerts announce remaining talk time, connection status, battery level and mute, enabling you to work smarter. Integrated A2DP lets you listen to streaming media from your mobile phone or tablet. The portable charging case stores the headset and USB adapter to provide a visual battery status for both the headset and charging case.