Cardo scala 700 - Headset ( over-the-ear ) - wireless - Bluetooth 2.0 EDR - active noise canceling Top Audio: High-end speaker for best audio performance Universal Compatibility: works with all BT mobile phones (incl. handsfree and headset profiles) at up to 30ft./10m ultra-Samll and Lightweight: Among the world's smallest and lightest BT headsets (11.6 g/ 0.41 oz.) High Capacity: up to 10 hours of talk-time/ 10 days standby Headset Location Buzzer