QM9

Regular Cleaning: Use a soft microfiber cloth to gently wipe the surface of the head unit. Avoid using alcohol-based or abrasive cleaners that could damage the screen and buttons.

Prevent Liquid Damage: Avoid placing beverages or other liquids near the head unit to prevent spills that could lead to short circuits or other damage.

Software Updates: Regularly check for and install software updates for your head unit to ensure it operates smoothly and has the latest security features. Visit our website and contact our customer service for updates.

Avoid Prolonged Sun Exposure: Prolonged exposure to direct sunlight can cause the head unit's materials to degrade and the screen to become damaged. Use sunshades or park in shaded areas when possible.

Shop with confidence. Our products have a 14-day return and 30-day exchange policy, and easy returns and exchanges mean you can shop without worries. Your satisfaction, our commitment.

For more details, please review our Refund Policy.