Toothpick sterilizer built-in battery, using type-c charging interface, about 1 hour after full, available for about 8 days. Built-in Angle sensor automatically stops working when the gum dispenser tilts or raises the lid during sterilization. The toothpick sterilizer is equipped with ultraviolet light with 270mm wavelength band. Push the slider to activate 3S to eliminate harmful microbes, 99% effective. Gyroscopic technology ensures that ultraviolet light is activated only when the device is carried vertically. When the tilt Angle exceeds 25 degrees, it will automatically stop to protect the eyes from UV rays. It will automatically work for three minutes every eight hours. 500 toothpicks are included.