LuckLife is Humidifier professional seller and provide the best service to you ! LuckLife colorful mini cup humidifier with soft night light, use the USB interface power supply mode, it can work with any USB power supply, such as USB adapter, the USB interface of computer, laptop, power bank, car charger and so on. LuckLifepurifier use of nano spray technology can effectively reduce the drying and the electronic radiation to eliminate atatic electricity, safe and clean, suitable for indoor and car use. PACKAGE INCLUDED: 1x USB Diffuser 1x USB Cable (no adapter included) 1x filters 1x User Manual ATTENTION: 1. Do not add any essential oil, perfume or other liquid in water. 2. If do not use the mini humidifier for a long time, as for safe keeping, pls pull off the filter sponge firstly(First hold the lid, pull the end of the filter stick to one side. Then you can open it easily), then clean the humidifier and dry it.