Bluetooth Earbud Headphones Wireless,Sports Bluetooth Headset,Toullfly&reg; Noise Cancelling Earbuds headset with Mic for iphone,Samsung,Sweatproof Earphones for Cycling Running Gym (Black) Portable, lightweight and sweat-proof design Built-in rechargeable Li-ion battery and microphone Sweat-proof: effectively prevent sweat and rain interfere with headset operation Clear bass resonance, CVC wind noise reduction, and superior sound isolation Caller report,Remote camera, line control answer/hang up/rejection/on-off, redial, mute, volume adjustment, Chinese-English shifting, intelligent one-driving-two, music pause/play, up and down song switching