Using Multiple Lark M2 Sets?

I just recently purchased a Lark M2 set for use in our church. I use the camera receiver unit connected to an XLR input on our sound board (with the purchase of a dongle to go from the mini-jack to XLR) to get the two mics into the house PA system.
My question is - can I purchase a second M2 set and do the same to feed its two button mics into another channel? Or would there be interference between the two M2 receivers?

Got this answer from Support:

Yes you can connect up to 3 sets in different devices. and each set mic need apart 0.5m.