1. Size: 23*20*6.3cm
2. Input current: 5V, 0.5-1A
3. Batteries: lithium ion 18650-3.7V
4. Output current: 4.5W
5. Working hours: 6 hours
6. Removable design of grids, easy removal of rotating grids, easy cleaning
7. Battery, USB dual power supply, energy saving, durable
8. There are 3 gears of variable speed air volume adjustment, which can be freely chosen.