Superior Stereo Quality and HD Sound] - Adopt the latest advanced APTX technology and professional audio rendering technology. Headphones provides high quality noise reduction technology chip which can block out lots of surrounding noises during running, sports, jogging, etc. [Automatic Connecting] - A fully automated system gives you a worry-free experience when pairing and connecting devices. All you need to do, take them out of the headset box and open them, you are ready to enjoy the music, the rest is left for automatic. Instant pairing and connectivity makes you feel that everything is easy. [Portable and Waterproof] - With just one full charge, the earbuds provide 3-4 hours of continuous music playback time. There will also be a display of battery energy on our charging box. Our Bluetooth earphones feature an IPX7 waterproof system that is resistant to sweat, water and rain. [Perfect Design] - Developed by integrating the structure of the human ear, two earplugs try to fit everyone's ear shape. Through constant adjustment, find the best point for the safest and comfortable. Even if they exercise for a long time, they will not fall down. There is no doubt that this is the best one on the market.