It can be used directly on the desktop. If you want to hang it on the wall, you can choose between two installation methods. On smooth walls, we recommend using punch-free stickers. On uneven walls, we recommend drilling holesPackage come with screws and installation instructions,you can install it in minutes and can be mounted on any wall. Convenient and fast, think what you think. Black and cool design style, with a sense of technology, very popular with everyone. The air freshener dispenser is made of high quality ABS material, sturdy and durable; Automatically spray fragrance into room to purify air and remove smelly odor. It has three time periods of day and night and all day, in each mode, you can set 7.5 / 15 minutes each time. metered air freshener dispenser matches the international standard size automatic spray refill (6.36oz). You can get suitable perfume refills for free on amazon or your local store. Choose the scent you like and let our sprayer complete the job of keeping the air fresh in the space.Note: please reset the automatic pressing lever before use, otherwise the automatic spray refill cannot be installed. Widely used for your home, living room, bathroom, bedroom, hallways, kitchens, offices, schools, restaurants, hotels, public toilet, etc.