Why does a lavalier microphone quietly record on a voice recorder?

Question

Microphones

Good time friends.
I studied the reviews on the boya by-m1 lavalier microphone, and also watched videos and reviews about the yulass 8Gb voice recorder.
The recorder was bought on Ali
Microphone in DNS.
If you plug the buttonhole into the iPhone, do not turn on the power, everything writes perfectly.
If you plug into this recorder and do not turn on the power, then there is no sound, if you turn on the power, then the sound is barely.
A buttonhole was supplied in the kit, but it is of poor quality, this was immediately discussed, it also writes very quietly from it.
In the settings, I did not find that it was possible to amplify the signal level from the microphone.
Prompt, in what there can be a problem and where to dig.