Audio Frequency bandwidth: 12 to 28000 Hz Sensitivity: 114 dB SPL/V Max. Input Power: 200 mW Audio bandwidth: 20 ? 20，000 Hz (± 3 dB) Rated Impedance: 32 Ohms Ear pads: Leatherette with slow retention foam， replaceable Cable: fixed Connector: Screw-on Jack Combo (1/4" and 1/8")， gold plated Unit dimensions 4.4” / 113 mm (length) x 7” / 180 mm (width) x 6.9” / 175 mm (height) Weight (w/o cable) 10.75 oz. / 305 g Gross weight 23.28 oz. / 660 g Gift box dimensions 9.3” / 235 mm (length) x 8.9” / 225 mm (width) x 4.3” / 110 mm (height) Master carton qty 10 pcs. Master carton dimension 18” / 460 mm x 9.8” / 250 mm x 22.7” / 577 mm Master carton weight GW: 17.3 lbs / 7.85 kg， NW: 8.5 lbs / 3.86 kg