Signature Sennheiser sound - high powered dynamic speaker systems for great bass-driven stereo sound,Premium comfort - ear adaptors in different sizes for excellent ear canal fit and ambient noise attenuation,Intuitive design - highly-aesthetic, ergonomic design,Ease of use - integrated microphone and smart remote for enhanced usability,Convenience at its best - storage pouch for hassle-free portability,Peace of mind two-year international warranty. For product related queries contact customer care, toll free :1800 200 3632