11
Catchbox 2.4
7.
Test the volume level by speaking into
the microphone and adjusting it using
the volume knob on the receiver.
Avoid excessive volume. Do not exceed 70 dBa for airborne noise.
Before turning on the device, make sure the volume knob is turned
to zero (fully counterclockwise), to ensure that no unexpected loud
noises appear when the device is turned on.
! CAUTION !