Not made real well. Is trying to come apart on one end, but it does work..
May 3, 2014
I need this for health reasons
I went to put batteries in it and face fell off. I had to superglue it on and now it looks terrible. Like I said I need this for health reasons and could not afford the time to send it back.i need this every day.....
April 12, 2014
This item makes it easy to accurately measure breathing issues
February 19, 2014