SoundBot SB563 Stereo Bluetooth 4.1 Sports-Active Wireless Headset Water-Resistant Earbud High-Performance Earphone w/ HD Deep Bass, Full Spectrum Range, for 4Hrs Hands-Free Talking & Music Streaming HEAVY IN BASS, NOT HEAVY IN WEIGHT - Premium dynamic bass driver loudspeaker to deliver enhanced & full spectrum SWEAT RESISTANT & SECURE-FIT - Full featured ergonomic human engineering design with tilted ear tips, ACCESSIBLE - Intuitive built-in mic and buttons for 6 hours of crystal clear hands-free talking call management UNIVERSAL COMPATIBILITY - High efficiency and eco-friendly Bluetooth 4.1 technology that is forward/backward compatible SUPPORT & WARRANTY - 100% risk-free 1 year manufacture warranty with responsive easy-to-reach customer service