Universal S Gear -HV-Digitial 800 Wireless Music A2dp Stereo Bluetooth Headset Neckband Style Earphone Headphone performance flexible comfort quick Foldable Hands free PINK 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.