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.
In August, Sonos announced that it will add support for Amazon's Alexa voice control (and Spotify Connect) in 2017. Sonos did not mention new hardware; rather, the initial integration (a free software upgrade) will require Sonos wireless speakers and an Alexa-compatible Amazon device, such as the Echo or Echo Dot. The company has scheduled a private beta to begin later this year, with a public release slated for early 2017.