So I tried this model in promotion, Ear Headphone enabled smartphone (iPhone 4 & iPod)
* Strengths:
- Price (no discussion possible :)
- Finishing Quality
- Sound Isolation
- Best bass, actually
- Better holding in the ears (PLUSIEUR adapters available)
- The microphone and volume work fine
- Reinforced cord
* Weak points:
- Narrower frequency response (20Hz 20,000Hz)
- Y-thread but the same length (no asymmetrical passing behind the neck)
Perfect score for that price.