132-Channel Mobile Video Recorder User ManualH. Remote Controller (optional)Button DescriptionNo. Description No. Description1 Split screen display 7 Enter2 Force Record 8 -3 Quad display 9 Fast Forward4 Mute 10 Play back5 Menu 11 Pause6 Arrow keys 12 StopHow to check if theremote controller isnot workable? Check the mercury cell is installed in Correctdirection. (Check the pole) √ Check the cell power is exhaust or not. √ Check the sensor is covered or not √Check if it nearby Fluorescent Lamp.