Features:1. New upgrade, double pump air flow multiplication technology, fast filling2. Large capacity lithium battery, ultra-long battery life3. High-density sensing chip, precise voltage regulation, and safety assurance4. High speed fan for cooling body, no scalding and no injury to the car5. Key to preset tire pressure, multiple modes, full automatic stop6. LED light, easy to breathe at night7. With a 3m car charging line, it can be powered by an external cigarette lighter8. The outer part of the inflation tube is made of nylon braided technology, which has high toughness, tensile strength, and is not easy to break, and long service life9. Multi-functional, can be used as a power bank10. Small size, convenient storage Parameters:[Product name]: 7.4v/12v dual-voltage wireless inflation pump[Product material]: ABS[Overall dimension]: 82 * 45 * 160mm[Battery capacity]: ST-9624C high configuration version: 3 * 2000mAh lithium batteries - LCD display[Working voltage]: 7.4v/12v double voltage[Working current]: 6A[Piston diameter]: 17mm[Maximum air pressure]: pressure: 0-150PSI[Accuracy]: 1.5psi[Air volume]: 15L/min[Continuous working time] 8-10min,[Time]: working time of lithium battery at full charge: about 30min, two tires can be driven at full charge[Type-C charging line]: about 80CM[Charging time]: charging time: 5-6h[Length of air hose]: 100mm 10mm[Gross weight of product]: 560g (including packaging accessories, etc.)[Service temperature]: - 20 ~60 Packing list:Wired model: host * 1+inflation hose * 1+inflation nozzle * 4+DC12V vehicle charging line 3m * 1+instructions * 1+storage cloth cover * 1 Wireless charging bag: host * 1+inflation hose * 1+inflation nozzle * 4+USB cable * 1+instructions * 1+storage cloth cover * 1 Wireless charging bank DC+USB power supply: host * 1+inflation hose * 1+inflation nozzle * 4+USB cable * 1+DC12V vehicle charging cable 3m * 1+instructions * 1+storage cloth cover * 1 Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.