The Pebble 2.0 are a good set of speakers, and I think of them as the perfect entry point for a PC audio solution. They look good for speakers in general, which is remarkable at this price point, considering other products of similar value (i.e Logitech's Z200) tend to take a squarer, boxier form that takes up more space. The materials are unremarkable; apart from the rubber ring on the base of the speakers, plastics are used throughout, with a matte finish for most of the sphere-like body, and glossy inset plastic in the cutout where the speakers emerge. Like any product with black plastics, this will collect fingerprints if you handle it too often, and the black gloss is going to attract dust. It's a trivial issue, but it's worth remembering. The volume knob is accompanied by a small green LED which is a touch too bright in my opinion, and is mildly distracting– I'm tempted to put a sticker over it. The device connects by one USB cable for power, and a 3.5mm cable for the audio-out jack of your output device (e.g your computer). Apparently you can use a 5V 1A USB power adapter too, although this is not included. Making the Pebble a two-cable affair w/ 3.5mm plug-in keeps the device simpler and cheaper, and means you can use it to play sound from non-USB devices, but sound quality may vary depending on your sound card if you're pairing it with a PC. I tested the sound of my Pebble speakers and I was satisfied. The bass is greater than one would expect from these little guys, each one about the size of a magic eight-ball. You could feel the speakers vibrating to the touch and radiating through the desk, so it's got a little oomph to it. The sound quality was fairly clear and detailed, reasonable enough that I could listen to music comfortably. For a system of this price, size, and simplicity, I give it a thumbs up. My previous speaker set was the Logitech Z533 2.1 speakers which I bought in 2017, which had a similar colour scheme to the Pebble. They failed after little more than a year (just out of warranty period, of course) and I wasn't keen on having another big subwoofer take up my desk space. Certainly, the extra grunt of a larger system does produce better quality sound, and in comparison, the 2.0 speakers in the Pebble are slightly “hollower” in some applications than larger systems (oddly, something I notice more when listening to dialogue and general video than I do with music). However, the combination of sound quality, size, and design the Pebble offers at 1/3 of the cost of my old set is a winning combination for me (note: I got my Pebble in the Christmas discount in 2018, so prices may have changed). If you want a set of stylish, good quality speakers at a price that is good value, and you don't want your desk dominated by bulky speakers, this is the one to go for.