This stroller fan is manufactured with ABS materials, and practical enough to use. It can be charged by computer, laptop, power bank, car charger etc. The low noise is suitable for your quiet office or reading, and suitable for your to sleep comfortably. Features - Material: ABS - Owning the and break resistance ability, very . - Portable rechargeable fan is a must for you and your children to zoo and park. - Small size and foldable tripod, put this stroller fan inside in your backpack easily. - It would be a good partner for you when travelling, cycling, camping etc. - You can fix it on stroller, student bed, , , to meet all your cool needs in hot summer. Specification - Battery capacity: 2000m/4000mAh - Charging input: 5V-1A - Power consumption: 3W - Charging time: about 3.5 hours - Using time: about 2-8 hour Package list: 1 x small fan 1 x USB cable 1 x specification