Product details:

Plantronics DeepSleep power saving mode activates when your M70 is away from your phone for over 90 minutes. When it's back in range (10 meters or less), you can just tap the Call button to "wake" it up. Using the DeepSleep mode can extend battery readiness up to six months. The lightweight design and soft eartip let you put it on and forget you're wearing it. Control your music and streaming audio using headset buttons instead of your smartphone. During set up, select English, German, or Russian language options for status alerts on remaining talk time, battery level, and more. Reduces noise, wind, and echo from calls and delivers HD audio clarity when with wideband enabled smartphones and mobile service. With up to 11 hours of talk time and 16 days of standby time you can talk more, charge less.