Very convenient and easy to use.With hot switch.This car heater is ideal for defrosting/demisting windows and windshields.Just plug and play.Instant heating, automatic overheating protection. You can heat the atmosphere in your car without having to wait for the engine to warm up within 60 seconds. Effectively defrost or demist your window quickly so you can get on the road and arrive at your destination. The newly designed air outlet provides high efficient heating, which can quickly clean the frost, fog, mist on your vehicle's windshield, ensure your driving safety. The heater has a handle and can be held. Ideal for car, camping and caravan. Suitable for all 12V vehicle cars. Made from ABS and heat-resistant polymer hard plastic, this car windshield heater features automatic heating, overheat protection and user-friendly design that saves energy with low consumption and low noise. Note: The data are all measured manually, please allow 1-3cm error due to different light and display, there may be some color differences, please refer to the actual item received.