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.
For other uses, see Sonos (disambiguation). Sonos is an American consumer electronics company founded in 2002 by John MacFarlane, Craig Shelburne, Tom Cullen and Trung Mai, based in Santa Barbara, California. It is widely known for its smart speakers developed and manufactured by itself.