The 'ultimate' emergency starter because it does all five functions:
1200 peak/600 starting-amp jump starter with built-in 4-gauge connection cables and battery clamps
Powerful 300 PSI tire inflator--fix a flat or inflate a beach ball; chuck and tips included
AC Inverter to power regular household electronics and 3 DC power outlets for cellphones, GPS
Twin high-intensity work/area lights plus emergency alert flashers
The essential travel companion for your car; like having your own personal tow truck along: boost a dead battery or inflate a flat tire; power household appliances and electronics with the built-in 150-watt AC inverter and any 12-volt device with 3 DC outlets. Plus, two bright lights to do it all safely in the dark and warning lights to alert others. So useful and practical, you'll want one in every vehicle. Makes a GREAT gift! Five essential automotive safety and convenience tools in one compact, easy-carry unit. One-year warranty and Satisfaction Guarantee from Jack's Tool Shed.

450 instant amps for jump-starts without the need for another vehicle
Keyless on/off power safety switch for added safety
Reverse hook-up warning alarm to prevent damage to vehicle or electronics
Built-in, ultra-bright LED light for emergency roadside assistance
Two year warranty
The Black & Decker Electromate 400 Portable Power Station/Jump-Starter/Compressor has 450 instant amps to start your car in the unlikely event that your battery goes dead. You can never count on finding someone to jump-start your car, even if you have a set of jumper cables. The Power Station/Jump-Starter/Compressor will alleviate this problem by giving you the power you need to do it yourself.
When your car loses power, the Electromate 400 has enough power to both jump-start your vehicle and run emergency appliances such as portable lights, radios, cell phones, and small tools. The Electromate 400 is also ideal for non-emergency situations like tailgating parties, camping, power outages, and any other situation where no wall outlet is available. The two built-in 120-volt AC outlets allow more than one appliance to be operated at once.