Issues with iPad sound going over to Bluetooth - anyone else?

Hello Everyone!

We have a problem with the iPads in one of our rooms that has a lot of noise - and we were thinking that a Bluetooth speaker would help.

Got an Anker and it works well with the phone, both iPhones and Androids - get the notifications on the phone and they 'ding' on the speaker.

However; the iPad... no ding. Tried multiple iPads... no joy. Someone sends a message and the computer dings, the phone dings, the iPad... silent.

Yes - the mobile settings are the same as the iPhone - not on Mute, and yes, I can select the sound on the iPad - hear it being selected... but the incoming notification - nada.

Anyone else?

Ideas, thoughts, sledgehammers?