Ultrasonic emitter

The highest frequency that the human ear is capable of perceiving is 20 KHz, although this frequency decreases with age.

The speakers of mobile devices do not usually emit sound above 20 KHz, so this app is limited to 20 KHz.

Most adults cannot hear above 15 KHz. Therefore, you can use the TEST button to check the function. The TEST button works at 4 KHz.

The AUTO button is used to sweep through all frequencies.

Ultrasounds have been proven to work for some animals. They are legal and effective, but the disinformation of these products produces the dissatisfaction of many users who try them and are dissatisfied. For the correct functioning of ultrasounds applied to animals we must take into account the following aspects:

- Depending on the animal, breed, if it has a disease or hearing problem, the ultrasounds will work to a greater or lesser extent.

- Ultrasounds for animals work best when the distance between us and the animal is no more than 5 metres.

- Animal ultrasounds are most effective when used with a small number of animals. The use of ultrasound in neighborhoods or crowded areas where there are many animals will lose effectiveness.

Do not use with headphones. In case of discomfort, dizziness and other symptoms stop use immediately! The application is used at your own risk. The developer bears no responsibility for the use of this application.