Battery powered oximeter is earlier than rechargeable oximeter.
So there are only about 4 models of rechargeable oximeter.
But there are many models of battery powered oximeter, you must know the most popular model: a blue one.
Because of aesthetic fatigue, customers now are more lean to some unique models.
That is why we develop this new model of battery powered oximeter.
You can see from the pictures, its display is very clear.
