Product: Car Heater for Toyota Sienna 2021–2024 (available in 12V and 24V versions) Why you need this Provides yearround cabin comfort and faster windshield defrosting without waiting for the engine to warm up. Two power options make it compatible with most cars, trucks, and SUVs—choose 12V for passenger vehicles or 24V for heavyduty trucks. Compact, portable design fits on the dashboard without blocking your view and can be moved or stored when not in use. Key benefits Dual power compatibility: Available in 12V and 24V models. Select the correct voltage for your vehicle to ensure safe, reliable operation. 2in1 heating and cooling: Heats quickly for defrosting and warming seats, or switches to a fan mode to reduce cabin heat in warm weather. Fast, effective defrosting: Built with advanced PTC heating elements to produce warm air in seconds and clear fog or ice from the windshield for improved visibility and safer driving. Spacesaving and adjustable: Small footprint with a 360° adjustable base so you can direct airflow where it's needed without obstructing your view. Portable and versatile: Easy to move between vehicles or remove and store when not needed. Performance and features Instant warm air output for quicker cabin heating and windshield defrost compared with waiting for engine heat. Cooling fan mode provides immediate airflow to help lower cabin temperature in summer. 360° adjustable base allows precise airflow direction for driver or passenger comfort. Designed for invehicle use—suitable for cars, trucks, and SUVs when the correct voltage model is selected. Compatibility Specifically listed for Toyota Sienna model years 2021, 2022, 2023, and 2024. Also compatible with other vehicles that match the selected voltage (12V or 24V). Confirm your vehicle's accessory socket voltage before . Typical use scenarios Morning winter commute: Mount on the dashboard, set to heat, and clear frost or fog from the windshield within minutes for safer visibility on cold starts. Summer traffic or idle situations: Use the fan mode to push air into the cabin and reduce heat buildup during stops or while parked. Longhaul or commercial driving: Choose the 24V version for trucks to provide quick cabin warming or defogging without relying on the engine heater. What to expect A small, portable heater with rapid warmup and a cooling fan option. Easy placement on the dashboard with adjustable airflow direction. Reliable operation when the correct voltage option (12V or 24V) is selected for your vehicle. Installation and use notes Select the 12V model for most passenger cars and SUVs; select the 24V model for compatible trucks and heavyduty vehicles. Place securely on the dashboard so it does not obstruct the driver's view. Adjust the base to direct airflow as needed. Follow vehicle and product instructions for safe use and connection to the accessory power outlet. This heater delivers fast defrosting and yearround comfort with clear compatibility choices and a compact, adjustable design suited to Toyota Sienna 2021–2024 and other vehicles with matching voltage.