Plug and Play: Safe and environmentally friendly mister fogger, no need to heat or use chemicals, just put the mist maker into the water and the mist will come out when you turn on the power. The spray volume is 300ml/h, the mist maker fogger will automatically power off when there is no water. USB Plug Mist Maker: In order to reduce the complexity of the power supply and to be compatible with more power sources, our mini fog machine is powered by a USB port. The USB plug will save you a lot of space especially if you need to install several devices in the same place. 4 LED Lights: Red, blue, yellow and white lights flash alternately in different colors. Create a wonderful atmosphere with water mist and lights, perfect for decorating your witches cauldron, pumpkin lights or skeleton at Halloween party. Splash Resistant Included: The package includes a splash-proof little house to avoid wetting the floor. With float, it can help you control the height of the ultrasonic mist maker in a variety of water levels to achieve the best effect. Wide Application: In addition to being used as a Halloween decoration, it is perfect for fountain ponds and fish tanks. It is also suitable for gardens, wigwams, reptile, plants, terrarium, bird bath tubs, etc., providing them with moist water mist and pleasant ornamental effects. Use time not more than 10 hours. Please use in purified water. When not in use, clean the ceramic disk with a cotton swab and keep it dry. Do not touch the ceramic disk with your hands while the mist maker is operating. Ultrasonic high-frequency vibration may cause discomfort similar to an electric shock.