WT-U12 DC 5V Negative Ion Smart Car Air Purifier 1. The beehives of the fuselage inhale the peculiar smell of formaldehyde, which is filtered through accelerated circulation, so that the pure air spewing out will circulate every corner 2. Bucket-shaped filter element design, multi-layer filtration, fully enlarge the contact area of the filter element and polluted air, and improve the purification capacity 3. The powerful fan stirs the air, and the large air volume purifies faster 4. When the battery is charging, the charging indicator light is steady red, and the red light is off when fully charged 5. Before the product works, turn the power off switch to the ON position, click the button function key, the host starts to work, the default is the first gear, the blue light is on, click again to switch to the second gear, the green light is on, three clicks, the host stops working 6. Easy to install and easy to use 7. Small and portable, easy to pick up 8. Input voltage: DC 5V 9. Output power: Resistance: 0.5W, high-end: 1W 10. Battery capacity: 2000mAh 11. Motor speed: first gear 6000rpm, second gear 7500rpm 12. Input port: Type-C 13. Power indicator: red light 14. Gear indicator: blue light for first gear, green light for second gear 15. Material: ABS+silicone+PPelectronic components 16. Product size: 68x68x160mm