Description: With air compression atomization technology, only pure essential oil is added without need of water addition for heating. The essential oil is directly atomized to nanoscale aroma particle which can be suspended in the air for a long time to keep lasting and uniform effect. Used along with various useful essential oil: help sleep, soothe the nerves, relieve your emotion, suitable for living, travel and vehicle mounted purposes. Built in 2000mAh lithium battery, it can last for 80 hours after charging for 3 hours with USB, It is compatible with 5, 10, 15 and 20ml essential oil bottles. You can easily switch between essential oil with different purposes. The touch type control button is easy to be operated; Timing function: With four timing modes, the machine can be automatically shut down after 1 to 3 hours or set to be stay open for a long time; Concentration adjustment: Controlled with three ranges of fragrance, it is suitable for spaces with different sizes and the fragrance is comfortable and soft. With compact appearance, it can match cup rack of automobile; It has aluminium alloy housing with high end and fashionable material. it is durable to use. Specification: Material: aluminium alloy Size Chart: Size: 69x135mm/2.72x5.31inch Package Includes: 1 Piece Car Aroma Diffuser 1 Piece 10ml Essential Oil Bottle (without essential oils) 1 Piece USB Cable 1 Piece Manual Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!