Hello.
40 slow and relatively deep inhales and exhales. The whole session of four repeats takes more than half an hour.
The app is my friend with keeping the score. Because you tend to fall asleep during the breathing phase :)
You can have voice, music, ping, breathing sounds during the exercise... I opt for the ping only.
The start page...
And then it counts and measures for you and makes little gong sounds (pings) at all the right moments :)