The Plantronics Voyager 520 is an over-the-ear style Bluetooth headset with a noise-cancelling microphone and a wind screen for call clarity.  The headset features Plantronics' Quickpair technology making it easy to pair with devices as well as Multipoint technology allowing it to remain connected to two phones simultaneously.  The Voyager 520 is operated by one multifunction multidirectional button that handles all of the headset controls.  The battery life of the rechargeable lithium-ion battery is up to 8 hours talk time and 180 hours standby.