What experts say about Sennheiser CX180

gadgets.ndtv.com

The Sennheiser CX180 is an in-ear canalphone-style headset, and has a frequency response range of 20-20,000Hz. It also has an impedance rating of 16Ohms and a sensitivity of 110dB. The headset does not have an in-line microphone and remote, and has a standard 1.2m cable. The sales package includes three sets of ear-tips in different sizes.The Sennheiser CX180 is an in-ear canalphone-style headset, and has a frequency response range of 20-20,000Hz. It also has an impedance rating of 16Ohms and a sensitivity of 110dB. The headset does not have an in-line microphone and remote, and has a standard 1.2m cable. The sales package includes three sets of ear-tips in different sizes.

techorfy.com

These earphones are thunderous. I used to listen to them at 50% volume usually.
In fact with a good earphone, you also need a good mobile to get the best music quality. When you put this headset in your ears, it will provide you with excellent isolation from the surrounding.
Then the bass-driven stereo speakers do the rest of the work to give an outstanding audio quality. It gives a perfect combination of treble and bass.