Plantronics M70 - Noise-Reducing Mobile Bluetooth Headset - Black & White (Certified Refurbished) This Certified Refurbished product is factory refurbished, shows limited or no wear, and includes all original accessories plus a 90-day warranty Reduces noise, wind and echo from calls and delivers HD audio clarity when used with wideband-enabled smartphones and mobile service DeepSleep hibernation mode activates when out of range from your paired phone, keeping the headset charged up to six months Control your music and streaming audio using headset buttons instead of your smartphone Onscreen headset battery meter is automatic for iPhone and is enabled for Android smartphones using the free Plantronics battery widget for Find MyHeadset app