Feature:1. Long Lasting Fragrance: With 4 speed adjustment and a 140ML oil capacity, this diffuser delivers a powerful and long lasting aroma for your favorite space. And its premium PP shell makes it shock resistant.2. Comprehensive Coverage: Boasting BT APP control and 200m coverage, it's ideal for commercial use in hotels, lobbies, saunas, and SPAs. With its included Type C cable, you can use it anywhere.3. Versatile Placement: Designed to be wall mounted or placed on a tabletop, this diffuser can be placed and moved anywhere easily and conveniently, providing you with a hassle free experience.4. User Friendly Design: An intuitive structure makes it easy to see the oil level and quickly swap oils, while the detachable mist nozzle simplifies maintenance. The top cover enables you to swap the oil with no hassle.5. High Tech System: Using two fluid atomization technology, this diffuser produces fine nanoparticles and utilizes a micropressure nozzle to speed up the atomization process.Specification:Item Type: Air diffuserMaterial: PPWeight: Approx. 525g / 18.5ozProduct Size: 169x115x60mm / 6.7x4.5x2.4inWall Mount Hole Diameter: 6.8cm / 2.68inPower Supply: USB cablePower Supply Method: Type CVoltage: 5VEssential Oil Capacity(without liquid delivery): 140MLCoverage: 100 to 200mInstallation Method: Desktop, wall mountNoise Level: <35dBaBattery(shipped with built in battery): 1xCR2032 lithium manganese button battery 220mAhFunction: AromatherapyApplicable Scenes: Hotels, shopping malls, clubs, hospitals, banks, stations, exhibition halls, car store, restaurants, cinemas, KTV, Internet cafes, foot massage rooms, leisure places, beauty salons, SPA, fitness stores, yoga stores, pet stores, clothing stores, studios, brand stores, sales, offices, conference rooms, home, library and other scenes.Package List:1 x USB Cable1 x Air Diffuser2 x Expansion Tube2 x Screw1 x Manual1 x AccessoryNote:Please kindly note that the oil is not included in the package.