Summary: These are my new go-to headphones--I'm extremely rough with my earbuds so I do go through a pair about every 6-8 months, so I have tried quite a few different models. I settled on Sennheiser as my brand of choice a while ago, and the MM30i's have recently become my preferred model. The audio quality is great--not on the scale of my large over-ear professional headphones, but for compact earbuds, these are excellent; the bass comes through firmly but not overwhelmingly,...
Summary: I bought this from outside and i have been using this for a couple of months..it works well with samsuNG GALAXY NOTE 2 and with galaxy s3..It's a good choice in the range of below 5000... I can assure u that..Never increase the bass by any device as the headphone is higly surround proof..
Summary: I am by no means an audiophile but these seem to be a decent pair of headphone. I have had several pairs of 'in ear' earphones all of which have been pretty terrible to be fair, but I thought that due to the size constraints these types of earphones just aren't capable of producing bass. I did have a raised eye-brow moment when the bass lines came though the 30i's and I would say they had as much bass as my full ear earphones.
Pros: actually has bass, comfortable to wear, comes with spare 'buds'