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.
Bluetooth technology allows for hands-free mobile phone use, as well as for listening to music and audio files stored on your Android phone (not to mention a proliferation of Borg sightings). Pairing your smartphone with a Bluetooth headset or other device increases your phone's usability. However, just because your smartphone can detect a Bluetooth device, that doesn't mean it can access the device's features--an iPhone might recognize a keyboard or printer, for instance, but it can't pair with either to type or print.