Feature 1Physical Atomization: Using advanced physical atomization technology, the liquid essential oil is converted into fragrance gas, and the aroma is quickly diffused into the environment, which can maximize the fragrance coverage efficiency. 2Two Fluid Atomization Technology: Using two fluid atomization technology, the essential oil can be dispersed uniformly, increase the retention time, and evenly fragrance every corner. 3PP Plastic Material: The shell of this smart scent machine is made of premium PP plastic, which is fall resistance, erosion resistance, long service life. 4Noiseless and Energy Saving: With memory function, support automatic switch, low consumption and energy saving. Long duration, low noise when working, stable and practical. 5Multiple Applications: This essential oil diffuser can be used in hotel lobby, guest room, bar, KTV, office, restaurants, shopping centers, etc.Item Type: Smart Scent Machine Material: PP plasticWeight: Approx. 941g/33.2ozVoltage: 100-240VBattery: Model CR2032, lithium manganese buckle batteryx1, 220mAh (shipped with built in battery)Function: AromatherapyNoise: < 38dbaApplication Range: 100 to 200mMaximum Range: 300mFogging Amount: essential oil concentration is adjusted to 95, 0.7 to 1ml/hInstallation Mode: Flat place, wall hangingEssential Oil Capacity: 200ml (shipped without liquid)Operation Mode: Intelligent PCBProduct size: Approx. 21.5x15.5x7.5cm/8.5x6.1x3.0inMounting Hole Distance: 7.5cm/3.0inOccasions: Hotel, family, physiotherapy, hot spring resort, sauna, SPA, KTV, leisure club .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 xSmart Scent Machine2 x Screw2 xExpansion Tube1 x Accessory1 x Adapter1 x SpecificationNote1. Please read this instruction manual carefully before using this product and keep it properly2. The equipment must be kept upright and upward when loaded into the essential oil, not inverted and tilted, otherwise it may damage the internal accessories of the equipment3. Do not use overloaded power outlets, power cords and broken power plugs, which may endanger your safety and may cause a fire