Pioneer SE-NC31C-K In-Ear Noise Cancelling Hadphone - closed-back, Noise Cancelling - up to 120 h running time, 14,2 mm drivers, 34,5 ohms rated impedance (NC on), 105 dB efficiency, frequency response: 5 - 16000 Hz, 10 mW maximum input, 1,4 m cable with 3,5 mm gold plated plug, weight: 28 g (without cable), incl. 1x AAA battery, aircraft adapter, carrying pouch, 3x additional ear tips (S/M/L), colour: black