Dog Whistle Handy to Train Dog funktioniert nicht

Applying this and other commands to the dog, you will make the understanding of whistle sounds easier. 
- Pick a frequency for positive response.  Use highest frequency since higher frequencies reach further. positive response 12000Hz, short sound,
wrong response 15000Hz, short sound
call 18000Hz, about 1sec.  For example: two short whistle sounds could mean the command "stop", or one long whistle sound to command "sit".  So for the command "sit", give the verbal command accompanied with a dog whistle noise to connect the verbal command with a whistle sound.  We suggest a low frequency because they are more pleasant for pets' ears. 
- Pick a higher frequency for wrong response.  The first step in dog whistle training process is to select series of commands that will be used as signals.  To help you teach the dog, combine verbal commands with the whistle commands.  Our whistle has adjustable sliders for active control of the frequency produced.  In that situation only a dog whistle can help, because the dog can discern it from all the other sounds.  Normally, a dog whistle is within the range of 16000 Hz to 40000 Hz with only the frequencies below 20000 Hz audible to the human ear.  Use it at times when your pet does something wrong. 
- You may also pick a frequency to call your pet.  Here comes the best handy Dog Whistle app that will help you for sure.  These kind of whistles are also used to determine the hearing range of people or for physics demonstrations. *Use this new "leash" at a distance and never miss your friend!  Traffic noise is, however, stronger than your voice and the dog does not respond.  Everyone knows the situation: a dog runs out into the street, you want to call him.  Here are some useful puppy training tips you should use.