There is no fixed number of centimeters specified for one full beep cycle. The manufacturer recommends keeping the probe fully in contact with the skin and moving it slowly and evenly upward throughout the cycle. Do not hold the probe stationary on one spot, and make sure there is always enough conductive gel for smooth movement. Because an exact “cm per cycle” speed has not been specified, we do not recommend using 3cm or 10cm as a fixed rule. If you need an exact technical movement rate for your treatment protocol, please contact service@freyara.com