The Hercules HDP DJ-Pro M1001 Professional DJ Headphones are tailored for analytic listening: great for DJ monitoring, studio and production. They feature soft, large ear pads to shield the user"s ears from ambient noise and closed-back ear-cups to prevent sound from bleeding out. These headphones don"t press on the user"s head, thanks to the ear pads" width and softness, which forms a comfortable barrier around the ears. The cable connection adapts to either the left or right ear-cup accommodating both right and left-handed DJs. The swivel housings make for convenient use - Easy 1-ear monitoring; Easy folding and mobility; and the extending arms accommodate both large and small heads. The 50 mm diameter drivers offer clear playback and deep bass response response. Their high efficiency (107 dB at 1 mW sensitivity) provides enough decibels to preview your mix even close to PA speakers. Rounding out their specifications are an ultra-wide frequency response of 5Hz-30kHz and 32 ohm impedance. These professional headphones are backed by a 2-year warranty and designed to offer years of trouble-free Djing enjoyment.