Ergonomical DesignThe shape of T13 perfectly fits the curve of the inner contour of the ear. Mini sized to be right for the small ears. With round soft silicone earplugs, it can offer more wearing stability and comfort when in use. Whether you're running or jumping, the earbuds will stay in ear securely. | IPX5 Waterproof ProtectionIPX5 Waterproof Nano-coating efficiently protects the earbuds from sweat or water, perfect for workouts, running, skiing, and other sports(not for swimming). | Type-C ChargeQCY T13 is equipped with USB-C charging. Besides, it supports fast charging, a 5-minute quick charge in the charging case gives you up to 60 minutes of playtime. |