I like the style the case the off an on ability of the oximeter simple to use gives a reading quickly the easy to follow instructions how to use it correctly. . I would recommend this product. I am very satisfied.
My child has asthma and this is a great workout to help build his lungs. He loves it. (age 9). He can definitely feel a difference. He is able to play outside a whole lot more now that we have started this process. He does it 2-3 times a day for about 2-3 mins each. Don't wanna over work the lungs.
I don't know how this works but after one use my uncontrolled asthma and copd is controlled this product is awesome I no longer need to use my rescue inhaler and it just continue to get better. :-)
Excellent device, I really liked it) It is especially pleasant that the seller took care of and put in the kit a lace, for the transfer of the device. The cover, pleasant to the touch, and it looks good in itself. Batteries also went in the KIT + on the device itself was a transparent-rubber cover. In one word satisfied