Over the Head Bluetooth Headset with Boom Mic. The Bluetooth Headset features Noise-Canceling Technology for crystal clear conversations. Block more external environmental noise with compared to other Bluetooth headsets. The over-head design allows this hands free unit to balance on your head reducing fatigue. This headset is programmed with a special battery saving feature, it will automatically power off in 15 minutes when not connected to a paired mobile phone. To prolong the battery life when the battery is low, it will make alert sound 10 minutes before automatic shut down. Voip Skype msn compatible.