Plantronics M180 Wireless Bluetooth Headset for All Smartphones - Gold NOISE-CANCELING: Dual-mic voice clarity and noise reduction enhances audio clarity for calls and smartphone voice commands. COMFORTABLE FIT: Lightweight design with a comfortable ear tip that conforms to the shape of either ear for a stable fit. LONG BATTERY LIFE: Reliable wireless headset with Deep Sleep power-saving mode to extend battery readiness. EASY BUTTON: Activate voice-control for Siri, Cortana, and Google Now smartphone assistants with the touch of one button on the headset. FIND MY HEADSET: Locate your lost headset with Plantronics Hub for iOS or Android devices and send a tone to hear your nearby headset or use its GPS location Backtrack feature.Talk time:Up to 7 hours