Bluetooth headset features cutting edge noise-cancelling and six layers of WindSmart technology to eliminate disruptive background noise so your voice sounds clear, indoors and out. A red 2-in-1 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. During calls, simply press the red button to switch mute on and off easily. The headset's dynamic mute alert tells you immediately if you're speaking while muted. Plus, timed voice alerts continually remind you when mute is still on. 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 an integrated docking stand (sold separately) offers up to 14 extra hours of power.