FEATURES: The car heater is energy-saving, low-noise, two-speed adjustable, hot and cold air is suitable for summer and winter, just plug it into the cigarette lighter socket of the vehicle and turn it on. The window defroster for cars is designed according to glass defrosting and demisting. It is the best choice for car defrosting and demisting in winter. PRODUCT PARAMETERS: Product name: Car heater Size: about 5.3*2.7*2.5 in, the cord length is about 59 in Colour: Black Material: ABS Weight: about 11.7 oz Performance: dual-purpose cooling and heating Power: 150W Product application: 12V/24V vehicles PACKING LIST: 1*Car heater PRECAUTIONS:The car heater is a high-power electrical appliance for vehicles, with a large working current (about 12.5A) and cannot work for a long time (40-60 minutes). Do not use it when the engine is stopped to avoid battery drain. If there is a sudden power failure after a few minutes, it is caused by a short circuit in the current protection of the cigarette holder, not a product problem. The protector can be used normally when the current reaches 15A, otherwise, it cannot work at a current lower than 12A. If there is hot or no wind (no fan running sound) or burning plastic smell at the air outlet, please cut off the power immediately and stop using it. The portable car heater is a high-power electrical appliance. The plug should be inserted tightly when in use, and the power supply should be kept in good condition. When pulling out the plug after long-term use, do not touch the metal part of the cigarette lighter to avoid burns.