Summary: I ordered for Christmas 2013. This is a great speaker system. Good battery life, no problems with bluetooth link. It has held up to outdoor use. My only complaint is that it could be louder, but it's not that big of a complaint because the loudness is on par with other speakers in this category.
Excerpt: I bought this speaker to connect to a sunroom TV that has horrible sound from the speakers. The only TV output was the 3.5 mm headphone jack, which plugs right into this unit. I am thrilled with the results, as the sound now is great along with never before heard bass. If you were to use available RCA TV outputs to the 3.5 input on the D100, the sound would be even better, as RCA will produce a higher quality.
Pros: Attractive Design, Easy To Set Up, Flexibility, Good Power Output, Great Sound Quality
Excerpt: This speaker is great, very light and sounds good. I use it in the office listening to ebooks, in the kitchen when cooking or washing dishes, and in our room in cases where i just want to relax to some music in bed (we don't have a stereo in our room). I've never tried it on batteries but there is an opening for 4 AA batteries i think. Considering I had a tinny travel speaker set that ran on the same power, I know this will be better, but how long will it last, not sure.
Pros: Attractive Design, Easy To Set Up, Great Sound Quality
Excerpt: I use it in the office as its size (13x5x4.5)makes it a little too big to be easily carried. But it easily fits on a shelf. I like the sound and choose AC/AAA battery power as it is used primarily in one place. Easy Bluetooth connection between laptop or phone.