AURIN&reg; Newest Wireless Bluetooth 4.0 Stereo Headset Sports/Running & Gym/Exercise Bluetooth Earbuds Lightweight Headphones Headsets with build-in Microphone for Smartphones-Black Latest Bluetooth 4.0 Version, Crystal clear sound with build-in 10mm dynamic driver, CCAW voice coil, DSP noise cancellation and wind noise cancellation Ergonomic in-ear design with medical grade silicone ear gels, providing you the most comfortable wearing in your ears for full day use Sweat proof design with water resistant seals to protect your headphones from sweat or rain interference, effectively stay put and keep producing quality sound, no matter how hard or humid your workout Built-in microphone, best talking performance with smart phone and Skype This bluetooth headphone is ideal for walker, hikers, or any kind of workout