With a convenient and stylish design, the Duracell 175W Power Inverter provides AC and USB power from the DC outlet in your vehicle. It features two 115V AC outlets and two 2.1A USB ports, allowing you to charge up to four devices at a time. The Duracell 175W Power Inverter is ideal for charging laptops, phones, iPods and other mobile devices. This model also comes with DC under / over voltage protection, output overload and short circuit protection, and over temperature protection. This product also includes a three-year limited warranty against defects.