... . Easy use 4. Eco-Friendly Product Photo Aerosol Dispenser:This aerosol dispenser uses digital circuit and infrared coding tech and it has precise ... , low power consumption, high efficient and easy to use. The dispenser is widely used in hotel, office, restaurant, airport, stadium, ... alarm “De De De” when power is less. Packing List Aerosol dispenser: 1 pc Remote controller: 1 pc User manual: 1 pc ...