Features1Physical 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 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.SpecificationItem 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 200m3Maximum Range: 300m3Fogging 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 clubPackage List1 x Smart Scent Machine 2 x Screw 2 x Expansion Tube 1 x Accessory 1 x Adapter 1 x Specification