These stereo headphones are compatible with all audio devices equipped with a Ø3,5 plug. ideal for use with mp3 / mp4 players, music players, laptops and other audio / video devices with 3.5 mm audio jack Impedance: 16 O - Response: 10-23000 Hz - Power: 50 mW max - Sensitivity: 108 dB / mW - 1KHz - Plug: Jack 3.5 mm Stereo - Cable length: / - 0.9 m