Does not scare anything off

I have the mole fright now about 1 month in use and have to say that the mole is gone now, but the voles is not permitted to sell. They interfere in any way to the mole fright. Therefore, in my opinion not against anything usable. The peak was associated with not very firmly with the pipe and had to be dug out of the ground and are re-fixed after the first withdrawal. Therefore 2 points deduction.