Question about Denon Heos 3 HS2

The Heos-3s can handle the Heos app perfectly, of course, and this connection works via WIFI. I can combine a single Heos or all the Heos in the bedroom or office on the mobile app and link them into the same group as my Denon (3600) and then I have the same sound throughout the house. But the Heos 3 can also do Bluetooth or audio aux-in. I use one or the other depending on my needs. The bass is particularly cool and stands out compared to other mobile Bluetooth speakers. The power connection is a bit of a disadvantage, but it's "ecological" and this device is not primarily about absolute mobility, but rather about flexibility. So, have fun with the evaluation and greetings S.