There is a known issue where the Coherence Coach Sliders do not work well on some older operating systems.
We suggest you use the + and – options for the Audio Volume and the Breathing Pacer.
Note: If you click more than once on the + and – icons, they will work well for adjusting the settings.
Please Note: If your Operating System is Windows 7 or greater; OSX 10.8 or greater, you shouldn't have any problems using the slide bars.