Got this DOSS bluetooth speaker as a filler gift for someone due to nice price and looks, but ended up opening it and using myself, as curiosity got better of me. Everything arrives in a very nice packages box (almost apple-like, other than brown colour) - hidden compartments keep the cables and instructions, while the speaker itself if nicely wrapped into protective bag. The speaker's top has a sticky instruction overlay that serves double purposes as protection and quick reference. Unwrapping everything and plugging it to charge was very simple.The build is pretty good. Device is made mostly out of hard plastic, but it does not feel or look cheap. If anything, the recessed top, the grill, and the DOSS logo make it appear stylish. It feels solid in hand, but not too heavy, and thus is very portable.As it charged, I couldn't resist the temptation to pair it with my phone and jam some tunes. Disclaimer: I consider myself an audiophile, so it's hard to please me with non-audiophile grade sound, but the sound was better than anticipated. The sound signature is mid0centric, with a noticeable fall off at high and low frequencies, but generally it was no worse than many consumer grade audio devices. The bass starts to roll off at about 100 Hz, while the treble roll off is in area of 16 Khz range - very respectable for such a small device. It sounded much better than a no-name $20 bluetooth speaker I had, and while my portable JBL Flip 4 felt fuller and more detailed, one should consider that Flip is three times as expensive as the DOSS, and is considered by many critics as best in its class (sub $100 BT speakers). If anything, DOSS sounded on par with other big brand sub-100 devices I auditioned in brick-and-mortar stores over past year. It seems to lend itself better to pop music, but electronica and classical are also adequately presentable.The battery, once charged, lasted me for hours: over the past days, it never ran out of juice, including through a 6 hour playback session. I am guilty of putting it back on charge at night, so hard to say if it reaches 12 hours, but I wouldn't be surprised.Touch controls worked flawlessly for me, and taking calls on the speaker was good as well - I actually asked if I sounded distorted, and received negative responses at all times: everything sounded good!The only negative I found is that on one occasion, my phone stopped recognizing the speaker after a cold reboot. I could see it in my bluetooth devices, but clicking on it would yield "device not found" error. Picking "forget this device" and re-pairing fixed the problem. It did not recur since,Bottom line: very happy with this device, especially for the price. It's not a top tier sonic contender, but positively represents itself in sub-100 dollar space. The design and the build quality are also notable, and the battery lasts more than enough for my sessions. Recommended!