You are able to mute or unmute the watch but at the moment, we do not support vibration adjustments (to increase or decrease the strength of the vibration), nor do we support increasing or decreasing the beep sound of your watch.
To mute your watch, press the COMMAND button for at least 5 seconds.
The COMMAND button is on the upper-right side of your Cogito Classic.
You should see a small watch icon on your Cogito LCD screen which means that the watch is on vibration mode only.
To unmute your watch, press the COMMAND button again.
When the sound and vibration is enabled, you'll see a small watch icon and a musical note on your Cogito LCD.