I Got this MX 270 recently . I would say that they are very good as compared to Sony , Panasonic and the likes .They outperform all others . It depends on wht you expct . At this price , i feel its a good deal. Sound is crystal clear and decent BASS !
But you need to handle them carefully as the cable is very thin .

purchased it few months back... using it rite now...

Pros: crystal clear sound, extra protection near jack and ear plugs for better durability... like all sennheiser products, adequate length of cable.

Cons: depth of music ... sometimes feels shallow while listening to heavy rock/metal, cable is pretty thin... can't say how long it will last.

Works well with my nokia phone and HP laptop. Very good for normal day to day usage.

Regular in canal earphone buyers please excuse, this won't be what you would be looking for, bass domination :).....though it is present little more than flat response I felt.

For people who really understand music-->
This is where it excels, balanced frequency response, clear definition/separation of instruments, awesome stereo separation, i like listening U2 music on it so much more than any other earphone for stereo separation.

I got it for 1000rs through deal/discount.

For people who h...

i have usedthe headphones and i am really satisfied by it. It has good sound clarity and good audio boost.The product is relly worth the price.

The headset has been really fantastic and is of awesome quality. It would have been better if the price was around 400 or 500. Anyway, a good experience to the ears.

Full range dynamic stereo sound.They are really great for the price, good quality sound and comfortable to wear. The only down-side for me was that I prefer to wear them with the foam covers on, which are very thin and one ripped as I was trying to get it on

They are lovely. Sound quality is nice too. material is good.

Pros.
Nice design for ears.
Good sound quality, clear music can be heard.
nice length of cord
warranty period is 2 years which is max available

The earphones are really worth the money.
They have a perfect balance of bass and treble and are very comfortable.
Dont fall off easily if you put on the cotton buds that are provided in the box.
Much Much better than a philips or Sony in the same price range.

However, the cable slider is too tight and doesnt slide along the wire easily.
Sometimes you may feel that the cable is too long but that's OK.!!

Ofcourse the quality isn't that great but this earphone still turned out to be my best purchase of year 2010. Sennheiser earphones comes with a warranty of 2 years. For the kind of usage i have, i felt i will get it replaced soon. But for my surprise, it lasted complete 3 years before giving up.

5 star just for being reliable

Hi I have research on net b4 buying this set, i felt that this will be good headset as its from sennheiser, I have used sennhieser b4 too, but this are not that up to thr mark, i m using them on ipod classic, and this produce very regular sound, not giving any surprising surround, not at all optimizing sound, not loud. JBL is much better in this price range.
Pros: Clarity, Good for vocal listener, value for money
Cons: Not loud, no surround