【2 in 1 Cold and Hot】This car heater offers both heating and cooling functions. Simply press the switch to easily change between modes as needed. The heater rapidly warms up to clear fog or frost from your windshield, providing a clear view and enhancing driving safety. It can also be used as a cooling fan to help keep you comfortable during hot weather. 【Innovative Design】The heater features a downward air outlet with a U-slot design that easily attaches to the existing air vent. With the downward outlet installed, it delivers warm air directly to your lower body for faster heating. The side slots and brackets allow secure placement on front seats, enabling rear passengers to benefit from the airflow. 【Simple and Effective】The wide-angle air outlet promotes efficient heating and cooling. Plug and play operation ensures instant heat with no waiting. Quickly defrost or defog windows for safe and comfortable driving. 【Easy to Install and Use】Compact and portable, this heater is ideal for winter use. Simply plug it into your car’s 12V power outlet. Turn on the fan or heater switch to start. Use the fan in summer and the heater in winter. The 360-degree adjustable design allows you to direct airflow at your preferred angle.