Uhappy Anti Sweat Bluetooth Headphones Wireless Earphones Sport Earbuds Headsets (Bluetooth 4.1, Balanced Audio, Build-in Mic, CVC 6.0 Noise-Cancelling) 5 Colors (Balck) Two powerful audio drivers on each side offering balanced audio and crystal clear sounds, providing a comfortable and dynamic listening experience. Latest Bluetooth 4.1 technology; easy and fast pairing with smartphones, tablets and other Bluetooth enabled music devices; Stereo bluetooth headset,CVC Noise Cancellation 6.0 technology reduces outside noises, enable clearer sound from microphone, you get high quality, hands-free phone conversation even on the street or inside shopping mall Comfortable and secure design fits perfectly to your ear; the cable smartly stays out of your way when running, jogging or exercising Up to 5 hours of continuous talking / music time and up to 96 hours of standby with a single charge, so you have less time charging and more time doing