Nikon S9 - Manual (Page 34)

32 Operation
S9 Audio Tones
The audio tones in your S9 provide status
information.
Audio Tone Status
Double tone when
adjusting volume volume maximum or
minimum reached
Tones while adjusting
volume increasing or decreasing
volume
High tone followed by
low tone, repeated
every 60 seconds low battery
No audio indications;
deteriorating audio
quality out of range
Ring tone incoming call
Two ascending low
tones pairing confirmation
Two ascending
medium tones mute enabled