jianc-1.Car cup design perfect fits most vehicle cup holder, small compact size(100ML) is large enough for Car space or room, Our car air diffuser provide 3-4H constant misting or 6-8H intermittent cool misting ( interval STOP/OPEN), Type-C USB cable easy to connect power bank, laptop or car charger, or simple plug in outlet ( USB cord is included, NO adapter ) NOTE:NOT WIRELESS, you should always plug in socket for using. 2.The electric car scent diffuser provide 7 colorful auto cycle LED light as an atmosphere lamp or a for car, office, home, bedroom. This car essential oil diffusers humidifiers is free,very safe, can be also used in pregnant women & cute kids room for a peaceful sleep.This diffusers for home is suitable for office too, only occupy small place on desk. With ultrasonic technology, aromatherapy diffuser spray quiet. It will not affect your work or rest at all. 3.When out on a picnic or trave with yr family on weekends/holiday, This small essential oil car diffuser is very portable to carry,only occupy a little space in the suitcase,U can take this diffuser to hotel to add cool mist and fragrance easily. When go out for camping, Plug the portable car air diffuser in the power bank / laptop via USB cable, can enjoy scent & little night light with 7 colorful changable LED light at once. No need worry about overheating. 4.-free material, suitable for babies, elderly, pets, etc. After you drop several essential oils, these essential oils will release a cool mist that fills everywhere. 5.The safe automatic shutdown design without water will not overheat when there is no water, ensuring the safety of you and your family. Perfect for setting up and falling asleep without worry. Material: ABS colour: black Package Contents: 1 x Humidifier 1 x USB Line 1 xEnglish User Manaul Only 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.