This is the first time I've bought myself a pair of nice earbuds before, and all I can say is WOW. Design and Comfort These earbuds, when you first use them, you will notice that they are extremely light on the ears. In fact, I've used these for about 1.5 years, have tried many earbuds in-between and yet have found an earbud that is comparible in weight. The engineers at Logitech took the idea of "disappearing in your ear" to the next level! These earbuds also have two different types of eartips as well (which will be discussed more in the "Extras" section). Logitech also did a good job at subtle things, such as "red for right" on the earbud, which is unobtrusive enough, yet makes a big difference actually in wearing the earbud. Furthermore, the curved back design really makes putting on the earbud a breeze. You get used to it quickly, and there is no question on whether the right one is on the right ear. Style wise, these earbuds are good, but don't make a statement like Dr. Dre Beats, which is great for me. It's stylish, but not an eyesore in my opinion. However, unfortunately, the insignia of my earbud rubbed off after prolonged use, which was very saddening to me. 5/5 Style (Sleek, unobtrusive. Good.) 5/5 Strength (Never broke on me, and dropping them never cause me worry either. However, I wouldn't stomp on them either (obviously). The 2 year warranty is a great bonus too, and the people at Logitech are wonderful to work with) 4.5/5 Portability (Very portable, they are earbuds. However, the case is a tad bit obtrusive, but I'd easily trade in peace of mind for space) SOUND This is the most important part of the earbud, and these don't in anyway disappoint. Bass Ok, I lied. Maybe the only thing that these earbuds lack, are the bass response, so bassheads, stay away! This is mostly due to the type of sound driver utilized in this earbud. You get a premium "balanced armature" driver in comparison to the more prevalent "dynamic armature" sound driver. The main difference between the two is the fact that the balanced armature drivers are far better at accurate sound reproduction, but dynamic drivers can have a better bass response. This is due to the fact that balanced armature drivers can be more finely tuned than their dynamic driver counterparts. Furthermore, the more you climb the ladder to "audiophile In Ear Monitors (IEMs)" the more prevalent these balanced armature drivers become. The famous music artists of today use IEMs that have 8 drivers or so in each ear, with multiple different balanced armature drivers for different sound reproduction, many being 2 for bass, 2 for midrange, 2 for treble, and 2 for either lower bass or higher treble. However, I digress. My major stipulation about these earbuds is their lack of bass response do to the balanced armature. Midrange However, in everything but bass response, I think the balanced armature driver is superior. This is due to the finer tuning of the driver that is achieved. Midrange typically is a tossup between balanced and dynamic driver earbuds, balanced being more accurate, and dynamic having better feel. It is purely subjective at this point, many of the time the argument is subject to the two earbuds being compared, however, I think that these earbuds are the finest at midrange than anything in it's price range , dynamic or balanced. I don't know what audiophiles mean by "hearing inbetween the strings" but with these, I can definitely understand what hearing the strings to their fullest potential is like! Treble This... is the best aspect of the earbuds as a whole. Imagine knowing your song. Well, you're wrong, the treble sounds better. These earbuds are absolute killers when it comes to the treble, and they don't leave anything behind. These earbuds are pin point accurate in this department, and they make sure to be true to what is thrown at them, whether this be good or bad (See Kilobits per Second: the part lost in translation). These earbuds redefined the way I see music, and for electronic (probably not dubstep) lovers like me, oh, the musical delight you'll experience (shudders in delight). In short, the treble is nothing less than outstanding, and if this doesn't make you smile from ear to ear, I don't know what will. Sound Overall 3/5 Bass Response (I was disappointed. The bass is very little, but this is natural for a balanced armature driver unless it is specified for bass) 5/5 Midrange Response (Very good. It won't disappoint by any means.) 9001/5 Treble Response (ITS OVER NINE THOUSAND (sorry, I had to). The response by the treble portion of this earbud is absolutely outstanding, and if it doesn't make you smile at least once, then you must then be deaf or the ear bud isn't properly burned in (See Burning in an Earbud/Headphone)) Kilobits per Second: The Part Lost in Translation Commonly, the average person won't understand what Kilobits per second (kbps) are, however, it is 100% relevant to the music you love and enjoy. When a song...