Feature: 1. 300ml capacity, moderate capacity, can meet most of the needs of aromatherapy and humidification. 2. Seven kinds of LED color lights are available, and seven different colors of lights can meet different needs and you can choose the right light color when sleep. 3. When there is no water, the power will be cut off automatically. When the water level drops to the lowest water level, it will automatically shut down, which can protect the machine properly and reduce safety problems. 4. 35db silent humidification, low decibels, almost silent, will not interfere with your sleep, humidification will not destroy the sleeping environment at the same time. 5. USB powered, easy to operate, easy to use, ABS material, healthy, environmentally friendly and durable. Specification: Item Type: Mini Humidifier Material: ABS Weight: Approx.330g/11.6oz Voltage: 5V Power: 4-5W Capacity: 300ml Vibration Frequency: 2.4Mhz Use Area: 20-40m² Noise: <35db Package List: 1 x Humidifier 1 x USB Data Cable 1 x Manual How to use: 1. Open the lid and add water 2. Click the switch to start working