I purchased this sennheiser CX 180 .I didnt like this earphone at all.The sound quality is extremely poor.The bass was not good.After 4 months of utilization the left half of the earphones ceased working.I was annoyed totally pissed off.So I asked for substitution and I got comparable model earphone and I was stunned subsequent to utilizing it.It had comparable issues and again one side of earphone halted working.I am exceptionally disillusioned with sennheiser.Rate of this earphone is high and in addition the quality is exceptionally bad.I gained from that experience that I ought to never purchase from sennheiser.Now am utilizing skullcandy earphones which is great.