Superior Design: built-in magnets let you attach the two running headphones together when not in use, easy and safe to carry around when you don't need them; with IPX5 waterproof rating, rains, splashes and heavy sweat won't stop your workout Powerful Audio performance: Advanced chipset delivers premium quality sound and Bluetooth 5.0 technology ensures a skip-free listening experience With strong and reliable Bluetooth Connection Universal fit: the wireless earbuds are small, lightweight and stay put in your ears for a discreet and comfortable listening experience; different sizes of ear tips and ear fins are included for your individual fit Three-button control: earphones communicate seamlessly with your mobile device thanks to a three-button remote and high-quality in-line microphone between the earpieces; control your calls and music without changing your pace 8 hours play time: up to 8 hours work time gives you the freedom to make calls and listen to music throughout the day