The air freshener dispenser is made of high quality PP material, sturdy and ; Automatically fragrance into room to purify air and remove smelly odor. The interval time can be set as 10 / 20 / 40 minutes as your need; With a light sensor, the air freshener machine can identify daytime and night, 3 modes adjustable: 24 hours working/ day/ off. Suitable Aerosol Bottle Capacity: 300ml; Suitable Aerosol Bottle Size: 5.51 x 2.56 inch. Easy installation, wall mounted design, can be easily hang and placed on the desk, you can installs in minutes without tools. Used for spraying fragrance automatically, no need manually, more convenient and labor saving. Widely used for your home, living room, bathroom, bedroom, hallways, kitchens, offices, schools, restaurants, hotels, public toilet, etc. Specifications: Power Supply: 2 x AA Batteries(not included) Interval Time: 10/ 20/ 40 minutes(adjsuatble) Working Mode: 24 hours/ day/ off Product Weight: 180g Compatible Aerosol Capacity: 300mL