“Sound great, can't expect more from an in-ear headphone... but they're so badly constructed that mine's broke after 2 months. Cheap plastic everywhere and a connector that broke after 1 week. This headphones are a scam. Bought them to replace my old MX500 that lasted for 5 years, unfortunately Sennheiser is not what it used to be. ” --jagalan
“ Introduction The easiest way to explain the Sennheiser CX-150's is that they do what you can reasonably expect. You can't really expect much from a pair of sub-50 dollar IEM's, and frankly, I was pleasantly surprised by the general quality of the CX150's. The sound quality is fine enough for portable listening from an iPod, as I use them, and I have yet to hear anything less than...” --BadMoose
These small headset provide you with full-bodied stereo sound with powerful bass response. They feature ultra-lightweight design for comfortable musical enjoyment, cool metallic look, delivering superior sound reproduction. The volume control is built into the cable, And the convenient carrying box that fits easily into your pocket.
“ I've been using Sennheiser IE8 for 2 years and its still awesome. sadly I lost it about 2 months ago. The first time I use it, it sounded ordinary but after several days of burning in I finally found the true sound that is so amazing. The sound is detailed, clean instrument separation, strong bass, and an awesome soundstage, and no microphonic... but after using it for a year I have to...” --QR2
“ I count myself really lucky. I was convinced that these phones were too treble-ey and didn't have good bass. I tried some after market foam pads and the bass just came pouring out of them. This led me to experiment further and found that the black foam pads that came with them gave a very neutral, but full sound. I am very glad that I didn't write a review before because it would have been...” --Sam Edwards
Portable on ear headphones with powerful bass
“ My full review/comparison of the NE-600X vs 700X vs 770X... http://www.head-fi.org/t/623137/review-comparison-nuforce-iems-ne-600x-ne-700x-ne-770x Quick summary: - U shaped sound - tiny fit - decent sound, but really the 770X is the better choice at half the price ” --Armaegis
The Sennheiser MX 660 earbuds are high quality earphones with Sennheiser's innovative "Basswind" system for superior, bass-driven stereo sound experience. They are ideal for use with all MP3, CD, DVD players and portable gaming systems as well as feature a volume control integrated in the cable and a cable winder for convenient cable length adjustment.
“ I've been out of the loop for a while when it comes to budget IEMs. Back in the day, the low priced options were simply not very good. I remember paying $40 for the V-MODA Bass Freq as a workout IEM because I liked the massive impact, though it was obviously not an "all purpose" type IEM. I used them with my Creative Zen Micro Photo...” --project86
“ Hello guys, I have been reading about the IE800 for some time now. I heard people saying it is a mini HD800. That intrigued me, as I love the HD800. I usually hate IEMs for their congested and bassy sound. I also hate sticking something inside my ears, but was curious about Sennheisers' new addition. It seems I am a lucky man, as last week soundnews.ro...” --dan.gheorghe