1,Quality ABS material, durable, non-toxic, and for long time service. 2,No noise, it will not affect your study, work or sleep. 3,You can add a moderate amount of essential oil or perfume to enjoy the full effect of your diffuser. 4,Compact size and light weight is easy to carry outdoor, suitable for car, office, or home use. 5,Stylish shape makes it a perfect decoration in your room, office, and more. Features: Quality ABS material, durable, non-toxic, and for long time service. No noise, it will not affect your study, work or sleep. You can add a moderate amount of essential oil or perfume to enjoy the full effect of your diffuser. Compact size and light weight is easy to carry outdoor, suitable for car, office, or home use. Stylish shape makes it a perfect decoration in your room, office, and more. Specification: Condition: 100 percent Brand New Material: ABS Battery: Built-in 500mAh Battery Rated capacity: 3.7v DC 500mAh Package List: 1 x Host 1 x USB Cable 1 x Spare felt piece Note: This product will not produce fog. The aromatic concentration may be diluted by indoor temperature and humidity. Please be sure to charge it every three months. If discharged completely, it may sometimes be impossible to recharge. When cleaning, use a neutral wash. Do not use diluent, ethyl alcohol, or it may damage the product. Don't put it in an overheated place. Do not place it on soft cushions or plush blankets. Do not put it in a damp place. Be sure to use 100 percent natural essential oil or perfume. Otherwise it may cause a failure. Please apply proper amount of essential oil or perfume. Excessive dripping may cause leakage, causing the main body to fail. Usage: Please add about 4 to 5 drops of essential oil.(when the aroma fades, add 1 or 2 drops of essential oil to adjust the aroma concentration.)When dripping the essential oil, remove the felt cover from the body. The scent of the essential oil or perfume diffuses when the LED light at the aromatherapy nozzle lights up.