Name: neck fan
Battery capacity: 4000mAh
Battery voltage: 3.7V
Rated power: 1.5~5W
Input voltage: DC5V2A
Input current: 1600mA
Charging time: 3h
Endurance: 4~12H (measured at the lowest gear for 11 hours and 40 minutes)
Net weight of product: 400g
Product size: 190 * 200 * 60mm
characteristic:
1. High quality raw materials, durable
2. Convenient to carry and free hands