Universal Bluetooth Neckband Headphones S Gear -HV-Digitial 800 Wireless Headset Sweatproof Running Gym Exercise Stereo Earphones Noise Cancelling Earbuds Cordless DARKBLUE Built-in Apt-x Technology Reproduces Cd Quality Sound Over A Bluetooth Connection Delivers Enhanced Audio & Bass Response. Sweat-proof : the material of the headset is in a sweat design, do not dip it in the water / Exercise-proof : Very comfortable and secure in the ears Comfortable Design : The flexible, bendable, neckband style ensures a 100% comfortable fit.