DJ PRO 60 Heaphone - Silver, compact, lightweight stereo headphones feature a comfortable self-adjusting headband and exceptional low end response. They come packaged with a free carrying pouch. Transducers, 40mm drivers Frequency: 30Hz - 18kHzSensitivity. Impedance 102 dB 50 Ohm. Cable length Approx. 8.5Ft (2.8m). Maximum power input 80mW. Jack (mm) 3.5mm stereo with 1/4" (6.3mm) adaptor. Weight (w/o cord ) Approx. .4 Lb (170g). Free carrying pouch included.