Tri Power Input Option WaveBox® brand portable microwaves are the worlds smallest microwave ovens, but their true beauty lies in the triple-power system that allows you to Heat It Up in places never possible before. The internationally patented power system gives you incredible possibilities:Standard AC WaveBox is equipped with a removable AC power cord and set for the correct voltage for your country, with the correct plug type, and has a removable AC cord. Using this mode, the WaveBox delivers 660 watts of cooking power similar to countertop microwaves. The AC power cord packs away for travel or when using one of the other power options.DC Direct to 12-volt BatteryThe extra-long 8.2-foot cable has alligator clamps to attach directly to any 12-volt vehicle or boat battery. In this power mode the WaveBox delivers the same 660 watts of cooking power as the AC cord.DC Vehicle Power Outlet Allows you to plug the WaveBox into a 12-volt vehicle power outlet rated at 20 amps or greater. Using the 20-amp vehicle power outlet, the WaveBox produces 240 watts of cooking power, great for reheating meals, warming coffee or heating convenience foods. Vehicle power outlets cant supply enough power for the WaveBox to pop popcorn, although popcorn pops great using the other power options.Check your vehicles owners manual to make sure the outlets are rated at 20 amps.