Eufy 2C - 4 pack - doorbell without homebase

Hi there,

I want to buy the Eufy Cam 2c Security Kit 4 Pack Wire Free 4 x 1080P Eufy Camera Units + 1 x Ai Homebase Unit ### Model # T8833CD2 in Australia.

Can I buy a wireless doorbell as well without a homebase, and will this all work together?