The exhalation time is 1,618 times the inhalation time.
Each track is 3 minutes. This is for short exercises and rebooting yourself on the go.
After completing the purchase, you'll get an instant download link sent to your mail. Use this link to download the mp3 file(s) within 72 hours.
Android users can download the files directly to their phones.
iPhone/Ipad users need to download the files to a PC/Mac and transfer them to their device via iTunes.
I wish I could offer an easier way to transfer the files to your devices, but I don't know how.
Headphones / earbuds are recommended for best experience.
Dropbox and iCloud can play mp3 files and are possible workarounds to save files to your Apple devices.