Steren CCTV - 958 Manual De Instrucciones página 60

Setting the volume level in play mode
In the preview mode press two times the MENU key to adjust the volume
level, min 0 max 30
Stand by mode
To put on the camera in the standby mode only press and hold the MENU
button and the screen turns off, to return to normal, press the power key.
M
60 60
volume
0
5
10
15
20
25
30