Built-in Surge Protection: Safely protect your electronics against power fluctuations from vehicle startup and shutdown * Automatic-Shutdown: The device will automatically turn itself off to protect your battery from draining * USB Charging Port:- Charge any consumer electronic device that can be charged via USB port. * Ground Fault Circuit Interrupter (GFCI):Prevents shocks to an imbalance flow of energy from the Hot to Neutral contacts * Power/Surge LED: Allows you to visually indicate the inverter's status. Cyberpower DC/AC Inverter 750WDC to AC Mobile Power Inverter - 750W. The CyberPower 750AI Inverter converts12v DC automobile power to standard 120v AC home power - up to 750 watts. Simply attach the unit directly to a 12V battery with the supplied clamps.