Customer Reviews
Based on 500 reviews
83%
(417)
14%
(68)
3%
(15)
0%
(0)
0%
(0)
M
Excellent
M
Great product
L
Good quality, small but effective
B
Both arrived working perfectly! Both are AAA batteries and function effectively and are easy to use.
E
It works correctly, I'm not sure about its use but to see your oxygenation status it's good.