Black Duracell Drinvps175 Portable Power Inverter With 175 Watts Of Power. 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 175 Watt Portable Power Inverter allows you to use your AC and USB powered devices in your car when connected to your vehicle?s DC outlet. Its convenient design includes 2 - 3-prong AC outlets, 2 - 2.1 Amp USB ports, and 1 LED power light to let you know when the unit is on It?s powered by your vehicles DC power socket and its 3? cord allows you to use the inverter in the front and backseat of your car providing a broader reach. Its ventilated high-quality cooling fan allows for safe, quiet and reliable performance Safety Features: AC input overload/short circuit protection, DC input over/under voltage protection, and over temperature protection