Preferred WiFi or Zigbee smart relay switch with 5V usb power

Hi all,

I have a Panasonic Intellibalance ERV, that has 2 possible switch configurations, one for on/off, and one for boost.

The ERV was a retrofit so we never had a traditional box set up with a line and neutral.

I don’t need a physical switch, just something to control digitally through HA.

It seems like a dry contact relay switch could be a good option, and it can be powered separately by a 5V usb, which I can get from a nearby outlet.

Thanks!
Scott