Works great for beginning running intervals on my iPod Touch. Voice is loud enough except when blasting techno podcasts (Podrunner). Would benefit from additional 30 second increments between 90 second entry and at least 10 minute entry. It presently has 30 sec, 1 min, 90 sec, 2, 3, 4, 5 min entry possibilities but then jumps to 10, 15, 20, 30 and 1 hour entry settings only.