Reliable call clarity, especially outdoors, from our exclusive WindSmart technology and cutting edge, adaptive noise cancelling. A dedicated voice control button easily activates Siri, Google Now, or Cortana. Whispered alerts update you on talk time, and even announce the names of incoming callers so you can simply say "Answer" or "Ignore" to calls without lifting a finger. Our cutting edge noise cancelling and six layers of WindSmart technology eliminate disruptive background noise like wind and chatter so your voice sounds clear, indoors and out. The rigorously tested ergonomic design ensures all-day comfort, from the first call of the day to the last. The optional portable charging case with integrated docking stand offers up to 14 extra hours of power.