I am reviewing this product with my honest opinion that I received to test and sample. I have really enjoyed this little guy. This is the perfect size to travel with or have around the house. The sound quality is excellent and I am very particular about my quality. I have a *** ****** and this little guy rivals it in many areas. First: The build is superior. Strong metal that wont bend, the buttons are solid and firm(they light up in the dark), they feel nice and solid. There is even raised feet on the bottom to prop it up. All around a great quality build of this product. My *** ****** is not as nice of quality because the metal has bent from usage. The buttons do not light up on my *** ****** either. The size of the two are completely different and this again is where I love the SHARKK. It is easy to take with you, it is lightweight, and comes with a nice carry case. Second: Battery life has been great. I did not charge it when I used it and it is still running. I would estimate total run time at this point has been 6 hours of use and it is still running strong. Third: Bluetooth connection has been simple. To initially connect it took 5 seconds to find my phone. Now once I turn the speaker on, it automatically connects every time. My *** ****** never connects like this little guy does. I would say that the 30ft distance is accurate. I walked away from my garage to my Jeep and could still hear the music. I noticed once I walked a little further past 30 ft, it got fuzzy. I have not used the NFC capabilities yet for Android. Finally, most importantly, Sound Quality. Though I do not think this quality is as good as my Big Jambox, I have been using the SHARKK more and more over the last 2 weeks because of the easy connection. The *** ****** also cost $200+ more than the SHARKK so quality should be better, not to mention the ****** has bigger speakers. However, the quality of the SHARKK is top notch. I am a big audio person so quality is important to me. This thing is loud and I could hear it anywhere throughout my house. It is still clear when it is played loud. I would never turn it up as loud as it goes because it is too loud. Playing music loud is not important, but more so that the quality is still there. Even the bass is not overpowering on this thing, it adds a nice quality to the music. My *** ****** quality is better, but also much more expensive. Summary: Overall, I do not think you are going to find a better speaker for the price. It puts out great quality sound, nice bass levels that are not overpowering, and it is all very crisp. I compared this to my *** ******and really enjoy it. The smaller size and lightweight is perfect for traveling and carrying around the house. It is very durable and solid construction. Overall, I would suggest this over almost anything else on the market, even the big boys. The sound quality is way better than the average user would expect.