That's really cool. This is a necessary application for me. I'm not good at swimming. I think it will help me learn it. These days I think there are a lot of training apps using IT devices. I'd like to see a lot of products like it. That means we can learn many things very easily without coaches. I really like it and I'd like to use it. Thank you for sharing!
RE: OVAO - Personal Coach on your swimming goggles