The House of Marley Positive Vibration XL are the best sounding headphones at the hundred dollar price point that I have ever used and I have owned and reviewed a lot of headphones from a wide variety of brands. The sound is crystal clear and balanced. Instruments have presence and life which is something that's usually missing in headphones at this price range.I'm going to say again that the sound on these headphones is balanced because it's important to understand exactly what that means--there isn't an emphasis on bass here at the expense of the rest of the sound field like with Beats and Sony headphones. You get clear highs which are always muddled on headphones where bass is emphasized over balanced sound. These headphones are capable enough at reproducing bass so if you used EQ on your device to boost the bass I'm guessing you could get the same bass-heavy sound that you would find on headphones that have already been tuned to be bass-heavy but I really don't like that sound so it wasn't something that I tested for myself.As with all House of Marley headphones (I also own a pair of their Exodus ANC phones), the build quality is first-rate and actually superior to $300 headphones from Sony and Bose that are made almost entirely out of plastic. The Positive Vibration XL has a metal body, metal ear cups, and uses very little plastic (although there is some). The overall construction feels solid and premium. These are also comfortable--although I would have preferred a bit more padding in the headband like on the Exodus ANC.I didn't really buy these to use with my smartphone--I wanted a separate dedicated pair of headphones to use for watching television at night and these are excellent for that, by the way. Many Bluetooth headphones including $300 flagships from Sony and Bose are terrible for watching movies on television because bass from sound effects and music overwhelms everything making dialogue and pretty much everything else on the soundtrack sound muddy and sometimes muffled. The balance on these provides clear, pleasing sound when watching movies including newer ones like Malignant and Suicide Squad which have loud soundtracks and a wide volume gap between dialogue, music, and sound effects. No headphones are going to give you a home theater surround sound quality experience but these are a very good choice if a pair of Bluetooth headphones for watching movies late at night.In any case, I did use these as my walking around headphones for several days and they were very good all around. Call quality was excellent, music sounded nice, and I was able to wear these all day without them becoming especially uncomfortable although I did take them off occasionally to give my ears a breather. These don't have ANC (which I never use on the Exodus anyway because it negatively affects sound quality) but the earcups provide pretty good passive noise reduction so outside noise shouldn't be a significant distraction or create the need to turn the volume up very high.The House of Marley Positive Vibration XL aren't the best headphones I own but they are the best pair of hundred-dollar headphones I own--and if you don't want to spend $200 or more on a pair of high-end headphones these are an excellent choice.