Automatic induction: The non-contact hand disinfection system is designed to atomize hand disinfectant or alcohol, and realize the automatic measurement of spray. Automatic sensors can quickly and easily disinfect hands and prevent -contamination, thereby achieving optimal hand . USB charging or battery: 3 AA alkaline batteries are required, batteries are not included. Do not use any other high-viscosity liquids, mainly alcohol. If you do not want to use the battery, the automatic disinfectant dispenser can be via USB. Note: The automatic disinfectant dispenser works by direct charging, which means that the dispenser must always be powered when in use Wall hanging: There is also a sticky hook, which can be hung to save space. The wall-mounted automatic disinfectant dispenser can avoid water accumulation or leakage. Practical : suitable for all kinds of disinfectant, liquid and hand disinfectant (Note: not suitable for high-concentration disinfectant, preferably not more than 75%). This product is an excellent hand solution suitable for all public areas such as bathrooms, kitchens, kindergartens, offices, schools, hospitals, airports, hotels and restaurants. Material:ABS colour:White Package Contents: 1 x Soap dispenser 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.