Panasonic RP-HJE 120 E1K are Earbud In-Ear only headphones that deliver great listening experience. The frequency range covered by the model is 20 Hz - 20 kHz. With 16 ohms impedance level and 96 dB sensitivity, this pair of black headphones produces authentic sound. In addition, the wired model comes with a cord which is 1.1 m long.