That was a fun puzzle and a super clever way of integrating the "joined together" theme! The dynamic volume is a spectacular way of conveying signal strength. I especially enjoyed the last level, as it proved that proper movement was important.
For feedback, I think being able to see a bit more of the map can allow for better planning; as it was, I had to take some movement on faith that there would be a wifi tower because I couldn't see if there was one or not.