I got this for Christmas, and as much as I REALLY appreciate it I do not have a need for it. These details were taken from the Sams club website: Stanley Fat Max 450 Amp Jump Starter Compressor included Ultra slim design is the perfect road side aid Description Stanley Fat Max 450 Amp Jumper with Compressor has 450 amps of instant starting power, with 900 peak amps of power. It includes a 120 PSI compressor, DC charging plug, heavy duty metal clamps, AWG cables, and a high powered LED light that rotates 270 degrees. This starter features a reverse polarity alarm for safety along with a metal handle grip and impact resistant injection molded housing. It consists of a power or charge indicator and reverses polarity alarm. Finally, the slim design makes storage of the jump starter in your vehicle easy. Specifications 450 Amp 12 Volt accessory outlet and DC charging cord Heavy duty metal clamps Built in AC charger cube Air compressor On/Off switch --------------------------------------------------------------------------------------------------------------------- It's brand new, never been taken out of the box. I looked them up, they seem to be around $50-$60ish bucks so I'll let this go for $40. FIRM Here's a picture. Message me for pick up location!