Features: 2 in 1 powered style, support USB or Battery powered. 3~7 hours working for time depends on speed, 1200mA rechargeable built-in battery is included. Low/medium/high speed level. Adjust appropriate fan speed by pressing the power button repeatedly. Perfect personal fan for office, home, bedroom, desktop, camping, or anywhere you need. Easy to carry it around. When you go outside, you can folding and put it in the bag with you,especially suitable for office, travel and other outdoor activities use, you can take it to anywhere. Equipped with a high-tech silent motor, you can be assured of a peaceful ambiance while delivering high airflow, thus creating an impeccable work atmosphere for you. Rechargeable Battery. It takes only about 3 hours to be fully charged. (Can also be charged by computer, laptop , power bank, car charger etc). Specifications: Material: ABS Wind Speed: 3 Gear; Low/Meduim/High Voltage: 3.7V Battery(Built-in）: 1200mAh Charging Time: about 3 Hours Color: Blue, Pink, White Size: Approx. 13.8x13.8x24cm/5.43x5.43x9.45in Weight: Approx. 500g Package Includes: 1 Piece USB Shaking for Head Fan note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!