Comfortable and Stable FitDesigned with flexible and soft ear hooks, these GNMN V7 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.) Born for activities, excellent choice for farmer, ranchers, drivers, warehouse workers, contractors, athletes and office workers. All-day Battery Life with Digital Display Charging CaseOn single fully charge, your wireless headphones last up to 8 hours. Plus they can get several recharges out of the fully charged box, which enable the wireless earbuds can play about 48 hours ongoing. In addition, the smart LED Power Display on the case shows the remaining battery in real-time, which let you know if the charging dock or running headset need to be charged