Compatible with 4 to 8 cylinder engines, the FR01337 jump starter, power supply and air compressor unit can help keep users from being stranded in an emergency. This 1200 peak amp engine starter is equipped with an LED flex light, a reverse hook-up safeguard alarm and a 400 peak watt converter. A 100 psi automatic digital air compressor allows for tire inflation and four USB ports allow users to charge their mobile electronic devices in an emergency. The FR01337 offers maximum energy efficiency for great performance. Need emergency power for a vehicle or phone. Trust Schumacher Electric's farm and ranch FR01337 jump starter and power supply.