From SupplyA, this 12V portable car defroster windshield heater provides fast defrosting and demisting with a convenient 2in1 heating and cooling fan for auto windows. Key benefits Clears frost, fog, and condensation quickly on cold or humid days, improving visibility and driving safety. 2in1 design offers both heating and cooling airflow, giving year round usefulness for windshield demisting and comfort. Fast heating performance minimizes wait time to restore clear windows during winter starts. Portable and compact, designed for simple installation and immediate use. Built to endure frequent daily use with durable construction tuned for automotive environments. Fits vehicles with standard 12V power outlets, making it compatible with most cars, trucks, and SUVs. Key attributes Functionality: windshield defroster and demister with a 2in1 heating and cooling fan. Compatibility: works with standard 12V vehicle outlets for easy plugin operation. Size and design: compact, portable unit designed for easy placement on or near the windshield area. Material and durability: constructed for durability and reliable performance in automotive settings. Performance: delivers fast warm air for rapid defrost/defog and provides cooling airflow when needed. Use cases Winter mornings: rapidly defrost and defog the windshield to restore visibility before driving away. Humid or rainy days: quickly clear interior condensation to reduce glass fogging and improve sightlines. Hot day comfort: use cooling airflow to help reduce interior temperature and dry damp windows after rain or dew. How to use Plug the unit into a 12V vehicle power outlet. Position near the windshield or demister area. Select heating or cooling mode as needed to clear frost, fog, or condensation and to maintain comfortable interior airflow. Adjust airflow as required for rapid results and clear visibility. With its durable build, simple plugandplay operation, and a practical 12V design, this SupplyA 12V portable car defroster windshield heater is a straightforward solution for keeping auto windows clear and visibility in a range of weather conditions.