Power supply mode: charging Functions: aromatherapy, mute, automatic sprayer Applicable area: less than 30 m2 Shape: round Water shortage and power failure protection: Yes Commodity Attribute: Operation mode: portable Number of fog outlets: 1 Style: Recommended Style: Mini Duration: 3-6h Type: fogged Built in battery or not: Built in battery Sensing range: /120 degrees Aromatherapy range: 30 square Accessories: instruction manual, charging cable Charging line battery: 3.7V,800mAh sensing range: /120degree Material: Plastic colour: white Package Contents: 1 x diffuser(not include oils) 1 x usb cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.