The Plantronics Voyager PRO HD with Smart Sensor technology redefines hands-free convenience. This headset is so smart, that by simply placing it on your ear, it automatically answers your phone or transfers calls back and forth between your phone and headset. Plantronics MyHeadset app that gives you tips, tricks and tools for Android-based phone. Combine HD streaming audio plus natural sound and superior comfort and you’ve got the smartest headset for smartphones. So smart, it knows when you can talk Smart Sensor™ technology knows whether to send calls to your mobile phone or your headset Put it on and you’ve answered the call So smart, it manages your calls. Eliminates accidental dialing by locking call button when headset is not worn Streams music, podcasts and more Pauses streaming audio for calls or when the headset is taken off Plantronics MyHeadset™ app gives you tips, tricks and tools for Android-based phones On-screen battery meter for iPhone and Android 3.0 or higher smartphones Experience brilliant, HD streaming audio plus natural, clear calls Voice alerts announce talk time, volume, connection and more Ergonomic all-day fit Triple tap of Call button dials Vocalyst™ voice and text service