Thanks to Bluetoothwireless technology 2.0, the signal link is more secure and your calls will be clearer. The Bluetoothtechnology also ensures that the headset is compatible with most Bluetoothenabled phones on the market. The BluetoothHeadset HBH-610 is packed full of technology but light in weight. An ergonomic ear hook combined with its light weight mean you can wear the headset all day long, staying truly handsfree.