[500W Car Power Inverter with dual 110V AC outlets and 2 USB ports]: It provides 1000 Watt of peak power, dual USB ports can charge most phones and tablets simultaneously, while AC outlets ideal for charging laptop, breast pump, kindle, lights, iPad, etc [Built-in Cooling Fan & Full Protection]: It has a cooling fan to keep the unit from over heating ( only works when output power over 200W, this ensures a quiet environment ). And along with all of the other safety protections in place, like the overload protection, short circuit and over/low battery [Digital and illuminated display]: The digital display identifies the current status of the inverter, like INPUT (V), OUTPUT(V) and OUTPUT(W). While reading the number, a red LED light is displayed [Ultra-protable and travel kit]: Just about 7.1 x 4.1 x 2.2 inches, space-saving, easy storage. extremely portable and lightweight at only 1.1 pounds. It's one of those things that is a must have especially in an emergency [Cigarette lighter adapter and car battery clips are included for two options]: While you are driving, plug it into cigarette lighter, it can provide up to 150 watts of continuous power; When you're at a campground, you can connect it to the car battery directly, it will deliver up to 500 watts of continuous power.