Multiple microphones and signature Plantronics audio technology eliminate disruptive background noise Charging case enables up to 16 hours talk time (up to 6 hours without case) Responsive sensors can automatically answer calls as you place the headset on your ear Hear caller's name announced and just say "Answer" to take the call Lightweight design fits quickly and comfortably in your ear Tap and pair with NFC-enabled smartphones During setup, choose a language for commands and alerts Compatible with wideband audio for use with HD Voice-enabled smartphones