Just a clock for relaxing while you breathe-in-and-out. press it while you breathe-in, leave it while you breathe-out. If you just follow the ticking sound, You'll breathe more slowly, each time you breathe, +0.1 sec.
Just a clock for relaxing while you breathe-in-and-out. press it while you breathe-in, leave it while you breathe-out. If you just follow the ticking sound in precise (one cycle per breathe-in, one-cycle per breathe-out), You'll breathe more slowly, each time you breathe, for each, +0.1 sec.