About this item The dual vortex fan system is powered by high-efficiency heat dissipation, and the turbine circulates the airflow to conceal the heat dissipation design. The system fully optimizes the air duct curve and enhances the heat dissipation effect to ensure sta High-definition image processing reduces jaggedness, smooth and clear images, and superior detail. Diffuse reflex imaging protects the health of the eyes. Even if you watch it for a long time, you will not feel eyesight fatigue. It is suitable for the whole family and young people. Rich expansion interface, support for access to game consoles, support for dual USB, HDMI, YGA/headphone interface, AV, KTV equipment, audio equipment, etc., to meet the fans of the projector. Built-in composite diaphragm large volume speaker for a wide range of listening sound effects.