Glasses-free VR technology: It has VR immersive gaming experience without the troubles of VR wearing helmets, connections, sanitation, and multiple hosts. It supports up to 6 people to fight in groups with different perspectives in the same scene. It is similar to online games, but does not require networking and has no transmission delay. Each gun position can output independently, dynamic, independent sound source, control target zoom in and out, electric shooting level up and down, etc., so that players can feel the unparalleled hardware experience.