Features: 1Wall Mounted: Wireless design, can be wall mounted, easy to install and operate, space saving, suitable for multi scene use. 2Body Sensor: Smart aromatherapy diffuser adopts body sensor technology, intelligently senses human activity and operates automatically. 3Large Capacity: Automatic aromatherapy machine is designed with large capacity spray, long lasting fragrance, suitable for small and medium spaces. 4USB Rechargeable: Body induction aromatherapy diffuser has a built in 1800mAh battery, rechargeable design, no need to replace the battery, convenient and fast. 5Quiet Operation: Intelligent fragrance diffuser runs quietly, suitable for restful sleep or working environment, won't disturb your work or study. Specification: Item Type: Smart Sensor Aromatherapy MachineMaterial: ABSBattery Type: 1800mAh 18650 Lithium Ion Battery (Shipped with Built in Battery)Gross Weight: 276g/9.7oz Package List: 1 x AromatherapyDiffuser2 x BackAdhesive2 x CottonSwabs2 x EmptyAromatherapyBottle1 x USBCable1 x EnglishManual