laotk:

Enhance keyholders Control and Move Corrections into Real Time

Some keyholders don’t want their caged males doing the normal male practice of adjusting and otherwise touching their genitals. Without the collar, correcting this is too much trouble and can’t be done the instance he touches, especially in public. The collar changes all that. 

Correction is instant and unnoticeable to everyone but the caged male. Unlike punishment, the shocks condition the male not to do the corrected behavior. It is training at the most basic level; the male will respond to the corrections and unconsciously learn to change. Make the corrections consistently for a few days and he will probably never touch again.

Source: Femdom Planet