Auto sensor dispenses soap without touch. Easy to fill opening is ideal for liquid soaps and sanitizers. Great with hand sanitizers to kill 99.9% of germs. Operates with 4 x AAA batteries (not included). Works with many different soaps and and hand sanitizers; do not use with granulated, foaming, or overly tick soaps or sanitizers. Do not use with lotions, shampoo, or conditioners.