Sports Bluetooth V4.1+EDR Lightweight Noise Cancelling Stereo Sweatproof Magnet Microphone Headphones- Black PERFECT WORKOUT HEADPHONES that are secure and snug so the headphones stay put while biking, running or at the gym. SUPERIOR NOISE CANCELLING BUILT IN MAGNETS lets you attach the two headphones together when not using, and wear like a necklace around your neck, a convenient way to carry around when you don't need them Got BLUETOOTH? Whether you're on the move or relaxing at home this high quality headphone works great with your favorite media device, including most mobile phones, Fire TV, tablets and musical devices INTEGRATED SMARTPHONE MICROPHONE AND REMOTE CONTROL for easy control of volume, tracks, sending and receiving calls when exercising