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.
Wistao technology also provide you Bluetooth products based on Bluetooth 2.1 to 4.0 version such as Bluetooth speakers, 2.0 & 2.1 Large power Bluetooth Speakers, HIFI Digital Bluetooth Audio Amplifier, HIFI Bluetooth Earphone, and so on.You can find the links and get more details.