Freesolo Bluetooth 4.1 In-Ear Noice Isolating Sport Earbuds Earphone

56S is designed for sports usage , made by waterproof material, ergonomic innovative and waterproof sweatproof design ensures this headset is comfortable and secure for sports ,running ,jogging ,walking ,exercising,etc. * Stylish looks and built-in Bluetooth chip with HiFi Stereo earphones...