Card Fan Hanging Neck Mini USB Fan

Product name: Mini hanging neck camera fan
Fan power: 2w
Battery capacity: 900mAh
Use time: about 1.5-5 hours
Product size: 120x75x22. 5mm
Charging input: DC5V=0.4A (shutdown charging)
DC5V=0.2A
(Turn off the third gear wind charging)
Charging time: about 3 hours (DC5V0.4A)