I've bought the headphones due to the many Producktrezessionen! Bin isplays. rather the closed system type but I chose right ... the sound and bass is clean and clear and a real music experience ever! The plug is skewed and does not go straight up what is real advantageous if man phone has in his pants and he rotates with the shift of the device (plug natührlich hard but he turns halt in the device). Have I still the same "Koss KSC 75 Headphone" and also brought a positive surprise!