High Quality NEW!!! Comes with 2 longer cotton wicks & 2 shorter cotton wicks Material: Acrylonitrile Butadiene Styrene Power source: USB Powered Wattage: 1.5 W Portable & Small size - Portable design, perfect for travel accessory. Easily fit in handbags, backpacks, & suitcases. Also fits perfectly in cup holder of the car. Cool Mist & Container diversity - Can effectively moisturize dry skin, help you to reduce skin drying & peeling. Length adjustable so it can combine with different containers such as, mug, normal glass, bottle or mineral water bottle. Super Quiet - Power on & the indicator works, it will auto off after 5s. DC power mute humidification, achieve silent healthy humidification. Do not disturb your work and rest. This humidifier can help to improve your sleep quality invisibly. When you put it on your bedside table, you can hardly hear its noise. Installation - Put the cotton wick into the connecting pipe. Then connect the humidifier head with the lower part of the connecting pipe. Use a cup to fill the water, then put the humidifier into this cup. Please wait for 5-10 minutes until the cotton wick absorb moisture fully. Plug in the wires & turn on the power. NOTE: Please make sure the cotton core has soaked a few minutes before turning it on. Mineral water, cold boiled water & clean tap water are suited best for the humidifier. If purified or tap water used, it will cause a lot of water & condensation to quickly buildup when on. DON’T ADD ESSENTIAL OILS into the water tank.