PALM-SIZED, ON THE GO: Measuring just 6.49*2.75*1.96 inches and weighing just 1.12 pounds, the L4 Tire Inflator is handheld, allowing it to fit perfectly in glove boxes or garages, and can be taken anywhere. With the included quick connector, you can easily snap it onto the valve and enjoy one-step inflation wherever you roam. | UP TO 40MINS BATTERY LIFE: The L4 Tire Inflator has a large 6600mAh battery capacity that unleashes massive energy and extends usage time. With just one full charge, you can inflate 12 car tires (195/65 R15) over its 40-minute non-stop runtime. Say goodbye to quick battery draining, and insufficient power. | 58s ULTRA-FAST INFLATION: The AstroAI L4 Portable Tire Inflator delivers powerful inflation up to 150PSI. It can quickly refill a car tire 195/65 R15) from 30PSI to 36PSI in just 58 seconds. This portable tire inflator is a must-have for emergency preparedness and efficient refilling. | 5 PRESET MODES, ONE-PRESS START: The L4 Tire Inflator provides 5 smart inflation modes (car, motorcycle, bike, ball, and custom) and 4 pressure units (PSI, kPa, Bar, kg/cm²). The beginner-friendly one-click start provides easy operation, it will automatically shut off once it reaches the preset value. Ensuring you have a quick and convenient inflation process. | FOR MULTIPURPOSE USE: Thanks to its 3 light modes (SOS, flashlight, and strobe), the L4 Tire Inflator makes it easy to handle any outdoor activity. Its USB output also works as a power bank, preventing your phone from dying while you’re off-grid.