KSCAT Bluetooth Headphones V4.1 Sweatproof Sport Headphones for Gym Running Workout 8 Hour Battery Noise Cancelling Headsets Hands-free Calling NICE 16 White HD Sound Quality: Strong audio drivers powered by CSR Bluetooth solution, offering these wireless earbuds balanced and crystal clear sound. CVC Noise Cancellation technology brings advanced audio enhancements and noise suppression to the near ends, enables users to listen to clearer sound from microphone even on the crowded street or mall. Noise Cancellation Technology intelligently Filters Ambient Noise to Ensure Clearer Sound for Calls and Music Playing. Your Listening Pleasure, Comparable to Full Sized Headphones in a Convenient Lightweight Bluetooth Headset. Ergonomic Optimized Design, Flexible Adjustment for Memory Metal Ear Hook Sizes, Shape and Angle. Dedicated Sports Music Ear Caps Make us More Secure and Comfortable to Wear Making You Super Comfortable While Enjoying Your Exercises. Supports Approximately 8 Hours of Talking Time 6 Hours Playing Times and 200 Hours of Stand-by Operation With a Single Charge, Giving You More Usage Per Charge Than Other Bluetooth Headset. Fast Connection-Our Bluetooth Headphones Can Pair with 2 Different Bluetooth Devices Simultaneously, Such as an iPhone7 7 PLUS, iPad, Samsung S7 edge S7 ,S6 EDGE ,NOTE 5 ,Huawei and other Bluetooth Enabled Devices.