Usage Tips:The air freshener dispenser is made of plastic material, sturdy and durable; Automatically spray fragrance into room to purify air and remove smelly odor. The interval time can be set as 7.5 / 15 / 22.5 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, unique wall mounted design, can be easily hang on the wall and placed on the desk, you can installs in minutes without tools. Used for spraying fragrance automatically, no need spray 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: 7.5/ 15/ 22.5 minutes(adjsuatble) Working Mode: 24 hours/ day/ off Product Weight: 275g Compatible Aerosol Capacity: 300mL Colour:white Material:plastic Size:210 x 80 x 73mm Package Contents: 1 * Automatic Air Freshener Dispenser (battery & aerosol not included) Only the above package content, other products are not included. Note: Light shooting 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.