Easy to use audio sound (frequency) generator that generates audio tones from 1 to 22000 Hz.
Test your phone's speaker, headphones, subwoofers, speakers and amplifiers.
Test your hearing.

Features:
- Variable frequency tone generator
- Sampling rate at 44100 (CD quality)
- 16bit PCM encoding (CD quality)
- Timespan selectable
- Presets
- Healing and meditation frequencies

Extra features: Anti Mosquito and Dog Whistle (or Cat Whistle).

Anti-Mosquito: the ultrasonic Mosquito repellent generator emits a very unique high-frequency sound (ultrasound) that most mosquitoes find distasteful and prevents you from getting bitten by mosquitoes.

Dog Whistle: train your dog to do tricks, train your dog to stop barking, or if there is a dog next door, use this app to make it silent.