Short press a button for the first time to turn on the fog and turn on the lights, and a short press for the second time to turn off (/off the lights), and a long press is only used to turn on or off the lights.A USB port can be used to plug a mini fan, a mini LED light, and can charge the phone.The product comes standard with one host, one USB data cable, and one manual in both Chinese and EnglishSingle weight 210g / 330g DC 5V 1A 5WCapacity 120MLLED light effect colorful gradient (middle waist line)Ultrasonic frequency 2.4MHZsize: 17 x 16 x 8cm Material: plasticcolour: WhitePackage Contents:1 x Humidifier 1 x USB cable 1 x Instructions in both Chinese and EnglishOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.