This is the programmable heater that helps defrost an automobile's windshield and warms the interior before you get inside. The battery-powered, rechargeable heater does not draw power from the car and it can be set to automatically turn on up to 20 minutes before you enter the car. The two heat vents tilt 180º to direct the hot air onto the windshield or throughout the car. Unlike remote car starters that require professional installation, this car preheater simply rests on the dashboard. The heater can be started from up to 200' away with the included remote and its lightweight design allows ease of transport to an AC outlet where it recharges in four hours; also recharges via a car power port (adapter included). 19" L x 4" Diam. (6 lbs.)