Features 
 - Built-in 3 × 2 VGA switch, support desktop computers, laptop computers, digital booth input; - the projector comes with protection, detection projector lamp work, and automatically shutdown delay, and better protection Projection 
 Machine life; - Embedded IR learning function, no allocation of professional learning, and the use simpler, more reliable storage; - Built-in 3 × 1 matrix of video and audio, video bandwidth of 100MHz; - 1 programmable RS -232 control interface, RS-232 code control projector; - 2-way I / O control interface, with a projector security management functions, and connected to the door switch, security equipment, to achieve even 
 Lock control; - 1 Road, infrared emission interface, self-learning control infrared projector; - 1 Road, MIC input, user-friendly explanation; - Host built-in screen all the way electric power control, all the way to the projector power delay protection; - - built-in way to adjust the volume levels without distortion; - built-in network module slot (optional network module) support for remote network control; - simple control panel, with a network interface, USB interface, microphone interface, laptop audio , notebook VGA port; - optional power lock control panel, and can be set to the device with dynamic control, the control is more simple and practical;