No I don't have bluetooth with this model. I've used it fine for the longest time (well since Sept anyway). Then last week it didn't turn on...I could have sworn I charged it...so I charged it again...it turned on and worked fine.
However the very next day it didn't turn on again (and this time I was 100% sure I had just charged it). I've got an email into Sharp asking them the same question. I'd hate to spend $60-80 on a new battery if it's covered under a warranty.