WD-1819 High Power USB Portable Computer Keyboard Duster, Battery Capacity: 10000mAh (Black) 1. Efficient battery life, long-lasting vacuuming 2. The surging wind can quickly clean up dust and bacteria, and clean without dead ends 3. The camera is non-contact cleaning to avoid lens scratching 4. The notebook unclogs the heat dissipation holes, and the heat dissipation is more smooth 5. Warm Heart Lighting Design 6. The handle fits snugly and feels comfortable to hold 7. Detachable nozzle for easy storage 8. Rated power: 65W 9. Rated voltage: DC 5V 10. Rated current: about 1A 11. Power supply mode: USB charging built-in lithium battery 12. Battery capacity: 6000mah 10000mah 13. Charging time: 4 hours 6 hours 14. Speed: 60000 rmin 15. Material: ABS 16. Scope of application: circuit boards, printers, sofa gaps, carpets, bookshelves, air-conditioning appliances 17. Packing list: product, instruction manual, blowpipe, USB cable 18. Size: 20x11x5cm 19. Weight: 450g