usb mini vacuum usb air extract cooling fan cooler for notebook laptop usb mini air cooler fan
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usb mini vacuum usb air extract cooling fan cooler for notebook laptop usb mini air cooler fan
Specifications
| battery | 2000mah |
| NW | 500G |
| Material | ABS.PP.PC Electronic component |
| Motor speed | Low gear:5v,midle gear:7v,Third gear:9v |
| Current | 300ma/540ma/720ma |
| Negative ion operating power | 1W |
| Ion concentration | 1x10^6/cm^3 |
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