This RoadStart Emergency Jump Starter features an Air Compressor and USB outlet The Sealey RS1322HV power pack is Fitted with two 12V power sockets that will accept any 12V device fitted with a vehicle accessory socket plug. It features an independent on/off switch which allows the positive clamp to be connected without the risk of sparking and an integral LED work light for use at night. Features: Also features a USB outlet (5V/1A) Integral air compressor with pressure gauge for accurately topping/pumping up tyres Composite case with moulded rubber protection, integral battery cable storage and carry handle Fitted with two 12V power sockets that will accept any 12V device fitted with a vehicle accessory socket plug LED Battery condition, polarity check, with an audible warning if the polarity is reversed, and charge indicators Features independent on/off switch which allows the positive clamp to be connected without the risk of sparking and an integral LED work light for use at night Specification: Voltage: 12V Weight: 6.75kg Peak Amps: 900A Maximum Pressure: 80psi Cold Cranking Amps: 400A Integral Air Compressor: Yes Cable & Clamp Length: 725mm Auxiliary Output: USB - 5V/1A, 2 x 12V Port