HM1351 Features: * Individual volume control with 4 in 1 operation on 1/8"" stereo and mono, 1/4"" stereo and mono modes * Replaceable soft leatherette style washable ear cushions are easy to wear with swivel ear cups and soft foil * Impedance: 170 Ohms * Speaker drivers: 57mm Cobalt magnet type Specifications: * Headphone frequency response: 18-20k Hz Dimensions: * Cord length: 9.84 Feet Warranty: * Manufacturer provides 1 year warranty