Video Doorbell Pro 2 Pro Power Kit

We are installing two video doorbell pro 2 X to ring one existing mechanical chime. Both doorbell locations are wired back to the same transformer. My question is do I need to install both Pro Power Kits at the mechanical chime since we are installing two doorbells or will the two doorbells be able to ring the mechanical chime with only one Pro power kit installed?

Hi @JAA97. This Help Center article here has some great diagrams. Try finding the one that will match your setup and go from there. I hope this helps!