Built-in 5-inch IPS HD screen, real-time monitoring of the input signal and the output screen; * Support through the panel BL+, BL- button to adjust the screen backlight brightness; * Support HD embedded audio or External analog audio(MIC,LINE IN), after mixed processing, can be embedded in the output HD signal or output from the analog port; * In the mix mode, support HDMI embedded audio selection fixed HDMI channel or turn off the HDMI embedded audio;