Plantronics Voyager PRO Bluetooth Headset for ALL Bluetooth enabled Cell phone models is a Lightweight design for all-day wearing comfort. WindSmart Technology with Stainless Steel Windscreens, GORE Vent Fabric and Electronic Microphone Filtering provides wind-noise reduction technology for optimal sound clarity. Convenient Design allows the Voyager PRO to be worn on the Left or Right ear. AudioIQ2 Technology features Two 3mm Noise-Canceling Microphones, Active DSP, Acoustic Echo Cancelation (AEC) and Sidetone Detection for Noisy Conditions. Versatile headset for multiple Bluetooth devices. Can be paired to 2 devices, one at a time. Call Control button supports Volume, Voice-dial, Mute, Call Answer/End, Last Number Redial and Voice Activated Dialing (Where Supported). Bluetooth version 2.1, class 2 for up to 33 foot range. Plantronics Voyager PRO battery life between charges is up to 6 hours Talk time, or 120 hours standby. Package contains Headset, Foam Ear Covers, User Manual and Micro USB AC Travel Charger. Weighs only 17.5 grams. Plantronics Factory original One year warranty applies.