ZaxSound Wireless Bluetooth Sports Headphones Secure Inear Fit Earphones Design Bass with Mic Sweatproof Earbuds for Gym Running Workout 4 Hours Battery Playtime Comfortable secure fit firm in place, wear it like a necklace around the neck, Adjustable, ergonomically designed with flexible ear hooks and silicone earbuds, won't feel hurt for the whole day. Deep rich bass and clear treble high acoustic sound quality, With an inline microphone, it can be used to answer calls, hang-up and redial. Blue-tooth quick stable pairing and minimal lost connections ensures seamlessly signal transmission up to 30 feet away, universal connectivity with most smartphones iPhone iPad and androids, and low battery consumption. long battery life (lithium polymer), Enjoy around 4 hours of continues play, and around 180h of standby time. takes 1h to charge. Portable with the included high quality carrying case for jogging, hiking, cycling, driving, camping, exercise and other outdoor sports sweat resistant. will stay still and never fall.