Plays frequencies for specified musical notes and numbers up to 2000 Hz.

- Farsi and English Notes.

- For below android 5 only 16-bit sound is playable which has no number precision and could be a little out of tune for very low notes.

-  16-bit and 32-bit frequency quality.

- Sinusoid frequency.

- Phone status permission is for stopping the frequency when someone calls your phone, permission is required for some mobile phones.