Remote control: All operations are controlled with one button, and the machine can be turned on with one tap, and the wind speed gear can be switched with the number of buttons Low noise, 10-25±5 (dB): Industrial brushless motor, stable and safer, long operating life, low sound Power bank function: It can used as a power bank for charging the phone 90 degrees automatic rotation for more cooling: 90 degrees up and down, a variety of wide-angle modes are available New folding design, portable and easy to store: Folding storage design, small and convenient, enjoy neat life 10800mAh large battery, 6-50 hours of battery life Specification: Model: P2000 Working time: 6-50 hours Material: aluminum alloy+ABS plastic Battery model: lithium battery 18650 Folding size: 250*250*120mm (folded) Stretch size: 250*250*980mm (maximum stretch) Net weight: 1830g Charging voltage: DC5V/3-4A Shaking head: 85+5° Charging time: 6±1 hour Noise dB: 10~25±5(dB) Battery capacity: 10800mAh Working wind speed: 2.5~4.7±0. 5m/s Working temperature: ≤50 Celsius degree Certification: CE, RoSH, FCC Fully charged use time: First-speed use time: 49~50H Second-speed use time: 21~22H Three-speed use time: 10-11H Four-speed use time: 6-7H First gear + shaking head use time: 16~17H Second gear + shaking head use time 11~12H Three-speed + rocker use time: 6-7H Four-speed + rocker use time: about 6H Package included: 1 x Fan 1 x Charging Cable 1 x Remote Control 1 x English and Chinese User Manual Other items not included