With the integrated, heavy-duty clamps, you can instantly start most 4- and 6-cylinder cars, trucks and SUVs. The 120 PSI Portable Air Compressor has a Sure Fit nozzle that connects to most tire valve stems with ease. With three high-output USB Charging Ports, you can power up multiple devices at the campsite or the worksite with ease. It also features a Safety Switch and Reverse Polarity Alarm to help ensure proper connection when jump starting.