Wireless Charging Case with LED Display: BX30 ear buds charging case supports 8 times fully charging for wireless earbuds and let you enjoy more than 80 hours music time. Each earbud can get 10hrs playback on a single charge. Comfortable and Stable Fit: Designed with flexible and soft ear hooks, BX30 sports earphones fit perfectly in your ears and stay in place even you are doing strenuous sweaty exercise, never worry about them falling out. IPX7 waterproof can effectively prevent the earphones from damage of sweat and raindrops. Besides, ear pads with three size options for a customizable fit. (The better the fit, the better the sound.)