The Brookstone Rechargeable Jump start Charger box contains: 600amp jump starter, 250PSI air compressor, 9 LED work light, 12V power supply and a 5V USB port.
Safety switch to prevent overloading and overcharging
Extra long 3m cord for the air compressor
Reverse polarity indicator
Built in rechargeable 12V 10AH lead acid battery with a LED light indicator to check the charge level