VoltSafe Magnetic Block Heater Plug with App Controlled Timer is a game changer! It eliminates the safety hazards and difficulties caused by standard extension cords. The magnetic force pulls the plug together immediately activating power and then releases just as easily, leaving the plug’s entire surface completely safe to touch. The app enables you to schedule your block heater, so you save energy, time, and money. No fear of electrocution, no danger of electrical fires, and no more driving off with your block heater still plugged in. Say goodbye to the drive of shame!