Ultrasonic Emitter is a free Android app developed by memisoft that allows users to emit ultrasounds from their mobile devices. Designed as a utility tool, this app is ideal for various purposes such as training animals, testing hearing capabilities, or experimenting with sound frequencies.

The app is limited to emitting ultrasounds up to 20 KHz, which is the highest frequency that the human ear can perceive. Users can use the TEST button, which operates at 4 KHz, to check the functionality of the app. Additionally, the AUTO button enables users to sweep through all frequencies automatically.

It's important to note that ultrasounds have been proven to work for some animals, but their effectiveness varies depending on factors such as the animal's breed, health condition, and distance from the emitter. For optimal results, it is recommended to use ultrasounds within a 5-meter range and with a small number of animals. Using ultrasounds in crowded areas may reduce their effectiveness.

Please be cautious when using this app and do not use it with headphones. If you experience discomfort, dizziness, or any other symptoms, it is advised to stop using the app immediately. The developer, memisoft, does not take any responsibility for the use of this application. Use it at your own risk.