Product description Product Description Surprise yourself with the excellent, bass-rich sound you'll get from these sleek, comfortable and lightweight earbud headphones. The MX400 headphones provide exceptional audio reproduction without weighing you down. Ideal for portable music players, the headphones feature a 3' OFC cable, 1/8" jack plug and a convenient cord-windup pocket carrying case. Imported. Mybeststore.Pk Boasting increased bass response and SPL output, Sennheiser's MX400 in-ear headphones sport a glossy black finish with silver print and chrome accents. The MX400 comes complete with a convenient black pocket-sized cord-windup carrying box. The headphones have a frequency response of 18 to 20,000 Hz and a total harmonic distortion of less than 1 percent. Sennheiser provides a two-year parts-and-labor warranty for the MX400. Frequency Response : 18-20,000Hz Cable Lenght : approx.1m Nominal Impedance : 32 Sound Pressure Level: 119dB(at 1kHz, 0.5Vrms) Distortion : <1%