Electronic pest management does not work instantly!
For an adequate number of devices installed in their proper places the pest management process may take from a few days, several weeks to in extreme cases several months.
The difference in time all have to do with;
a) to what extent the pest is being exposed to the sound waves from the pest management device(s),
b) how bonded the pest is to your house or garden,
c) how strong the strain of pest is in comparison to other groups of pest in the vicinity in their struggle for a dwelling area of their own.
Normally, you should anticipate a time span of 3-6 weeks before your pest will finally give up your premises.