I received this breathalyzer, unpacked the box, tried to turn it on, it did not work. Put on charging, the indicator began to blink. After a while, the indicator stopped blinking, suggesting that the breathalyzer was charged. Tried to turn it on. The screen flickered and that was it. Plugged it in again, nothing changed.
The device does not work.
I specifically chose Xiaomi assuming the reliability of the device, but it turned out to be a complete disappointment.
I do not recommend buying.See full review