Hopefully people interested in these will take the time to read the review and not immediately take my 5 star rating as a 100% positive experience. Now I am not an audiophile and I wasn't looking for audiophile sounding head phones. We all have different tastes in how we want our music to sound so it's hard to judge by some of the professional reviews out there for headphones. I have a couple pair of in ears in the $300-$400 range that got rave reviews that honestly I am not entirely happy with despite their superb reproduction of sounds. What I look for in headphones is a good separation of instruments, no distortion, and hard punchy responsive bass without introducing problems with my first two conditions. Now on to why I gave the Samsung level in a 5 star rating despite what other ratings and reviews may say. These are a 5 star pair of IEM's because of the entire package. You get a lot for your money. I paid $29 for these and have only gotten a better pair once for cheaper thanks to a close out sale. Like I stated earlier these are not an audiophile pair of IEM's but they do sound good. In order to get a good sound you MUST take the time to use every pair of tips in the package. Just because they don't fall out of your ears does not mean you are using the correct tips. Secondly if you don't have a high end laptop don't be upset or think there is something wrong with these because they sound weak and hollow. Most of the time a very low impedance causes issues with laptops and cheap sound cards and these has a low 8ohm. Oddly the best experience I get with these are with my cellphone though I would guess a poor quality cell phone could cause issue as well. Once you have a device capable of supplying the needed power you will get a very enjoyable sound from these. The bass isn't as tight as I would like but it is leagues better then anything you will find in the $30 range. These IEM's also respond really well to a boosted bass app and end up doing a really good job of mimicking the subwoofer experience.Im pretty impressed with the amount of bass the 10mm driver puts out in these. I am a huge fan of hybrid IEM's. These aren't quite as detailed as my others so you wont pick up on artist taking in a breath during a verse or a finger touching a guitar but you will hear all the instruments clearly and nicely separated. While these aren't detailed enough to pick up some sounds they are detailed enough to notice issues with overly compressed mp3's that you may not notice with other headphones in this price range. IMO the mids and highs are satisfactory at all levels but at extremely loud probably unsafe levels the bass can distort very slightly which is more noticeable with highly compressed music. Theses IEM's seem to shine with hip hop and club music. They are good and perfectly acceptable with rock but don't hold a candle to any of my other IEM's in that category. The build quality is decent. It's good for the current price but may have been a disappointment at the $150 price tag. I use these with an HTC so I don't get volume control but all three buttons do have a function. Instead of volume the plus and minus will change tracks and fast forward if held down. The mic seems to do a very good job with no issues in quality. Sorry for the extremely long winded review. To sum it up this is a must if you are mainly into hip hop or club music and don't mind using an eq app to get the full potential of the bass out of these. If those two things sound good to you then get them cheap while you can. There isn't any real competition for these at the price range.