Introduction - If you have any usage issues, please Google them yourself
ALARM = 1 when called buzzer.- The first 50 seconds when called, asking for 10 seconds, 9 seconds before the bass, treble Finally one seconds.- Treble for 500HZ, bass for the 250HZ.- Hold down the MS1 (ML1 lights out) automatically increases, according to emphasize key points MS2 (ML2 lights out) to automatically increase.- 6 total overcast LED digital tube, respectively, show/min/sec, 6 LED digital tube display dynamic scan.