SoundBot&uml; SB221 HD Wireless Bluetooth 4.0 Headset Sports-Active Headphone for 20Hrs Music Streaming & 25Hrs HandsFree Calling w/Sweat Resistant Ergonomic Secure-Fit Design & Voice Command Support ERGONOMIC & SECURE FIT DESIGN - Features ergonomic behind the ear and neck human engineering frame design that securely fits and comfortably sits over the ear/neck for both indoor and sports-active outdoor use from to up 33 feet of remote distance. INTUITIVE CONTROL - 5 intuitive and dedicated remote control buttons that allows easy navigation and quick access to SIRI or Android voice command (only on supported phone models and operating system), call management, wireless music streaming control, and volume adjustments. FULL SPECTRUM & BALANCED OUTPUT - Equipped with noise reduction, crystal clear audio technology, and high-performance speaker driver that reproduce and deliver natural and balanced full range music spectrum for enhanced HD listening experiences. OVER 20HRs of HD WIRELESS STREAMING - Built-in high density rechargeable lithium-ion battery and microphone for up to 12 days standby time, 25 hours of hands-free talking, or 20 hours wireless music streaming from a single charge. SWEAT RESISTANT & SCRATCH RESISTANT - Swivelable earcup with ultra foldable compact water-resistant frame to provide maximum comfort and portability for everyday usage. Scratch resistant surface to prevent the headset from signs of wear and tear. Covered by 1 full year manufacturer warranty with responsive and satisfactory customer service support team.