EZVIZ multiple DB1C with single smart chime ?

[P-one]

Hi guys, I'm new here, just thinking to get DB1C with Smart Chime.
I want to know if say TWO DB1C can link to ONE Smart Chime (for fast ringing if any of the bell is pressed) ?
or only one DB1C can link to a Smart Chime? In this case will the chime rings when any of the bell is pressed.
Thank you very much.

 

[ruasonid]

I'm looking at the EZVIZ products. Some support 2.4GHz and 5.0GHz and others only 2.4GHz. That might be something to consider (not sure of actual performance in situ)