The product integrated infrared smart sensor operation fully automatic and touch, enables a quick and easy hand disinfection, achieving optimal hand hygiene, avoiding the second cross-infection. The foam soap dispenser can be mounted on wall, which can be save more space, 700ml - large capacity - will spare your precious time and frequency of refilling it. It has two modes of power supply: four AA batteries or USB. 3 7/8"L x 4 3/8"W x 6 5/8"H