Meals contained instrument. Vibration induced dual regulation Peculiar smell Vibration induced Inside take oil Dual regulation Power supply mode: USB, car power supply Function: Aromatherapy Applicable object: household Applicable area: 21-30 square Shape: round Noise: 36dB Water tank capacity: less than 1 liter Water shortage and power failure protection Operation mode: Mechanical Fog outlet: 1 Rated voltage: 5V Rated power: 3W Standard volume: 40ml Capacity: 40ml Color: White + gray Material: ABS+PP Size: 8 x 8 x 4cm Package Contents: 1 x Humidifier 1 x USB cable 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item to be a little different from the real thing. The measurement allowed error is +/- 1-3cm.