Four switching modes:
1: single
picture mode. 2: Quad split screen mode; 3: Four-picture main and auxiliary
A mode;
4: Four-picture main and auxiliary B mode
One-button switch,
convenient and quick: The toggle button switches the product on and off with one click You retracted a message Reedited
3.5 mm stereo audio output: Audio channels can be switched via hotkeys in quad-screen mode
Switch channel indicator light,
clear and clear: Signal source channel switching button and indicator light, switch to any signal source channel and the indicator light is on to know


