Wireless lithium batteries is designed to get rid of the power cord, and the 440g lightweight body with compact size can be stored with the car without occupying space. The working temperature covers -20℃ ~ 60℃ (-4 ℉ ~ 120 ℉), and the built-in battery can discharge stably. Solve the problem of tire pressure drops in severe cold winter or equipment failure under extreme heat exposure. At the same time, it has four modes: inflation, emergencies charging, lighting and for help. The 4000mAh battery can charges mobile phones and other devices, and the LED lamp supports constant lighting and flashing for help. Solve the dilemma of not asking for help when the tire leaks in the field and the battery of the is in a hurry. Built-in protected circuit against short circuit, overcharge and overdischarge can automatically cut off abnormal current. Solve the pain safe hazard caused by battery overheating or excessive discharge of air pumps. Multi-calibers nozzle is standard, which can be adapted to the inflatable interfaces of automobiles, motorcycles, bicycles, ball games.< / >