Features: Effectively allows you to defrost or demist your window quickly so you can get on the road and get to your destination. 2 in 1 cooling and heating function, regarded as demister and defroster. Just plug it into your vehicle socket and turn it on, very easy and convenient to use. 180 degree rotate supporting holder, follow control, more convenient and comfortable. Works perfectly against fog on your windows, keeps you cool at summer and warm in the winter. It is great for defrosting or demisting window and windscreens. It will warm your car within seconds. Or if you are feeling hot, like in the summer, you can adjust it to blowing cool air instantly, keeping you cool at summer and warm in the winter. This heater or fan will blow instant heat or cool air. Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Specification: Style A: Size:13x11x7.5cm Voltage: DC 12V.24V Style B: Input Voltage: DC 12V Material: ABS Size: 180×140×65mm Apply to: closed small area Cable length: 1.7m Power: 150W Package List: 1x Heater