Hyperparathyroidism is where the parathyroid glands produce too much PTH. This causes blood calcium levels to rise (hypercalcaemia) and blood phosphorus levels to fall (hypophosphataemia).
Just two words: Quality and BlueTooth cannot be used in same sentence. The Sonos Play 3 is a very good sounding speaker for it's price range and is well made. You can't really compare it to a BT speaker as it really is much more. Your smartphone is mostly used as a remote for it rather than a source so your phone doesn't have to be on all the time you use it.
Sonos speaker vs other bluetooth speakers. Hope everything fine. I'm writing to you to ask for a quick feedback regarding these set of speakers I would like to buy. Sonos Airplay 3: price is about 300 eur. I listened them and I was well impressed about sounds quality. Of course I know it is a plus the possibility to compose with the other speakers but as a negative point, for what i've understood you would need always to be connected to the internet to use the wifi connection.