To listen to your music without disturbing anyone\n- Very light, you can take it everywhere with you: at school, on holidays…\n- You can adjust the size so that it fits perfectly on your head!\n- Handy folding design: you can store it easily in your bag!\n- Frequency response: 10 - 24,000 Hz\n- Impedance (acoustic resistance): 150 ohm\n- Power output: 100mW.\n- Sensitivity: 85 dB. Volume control to protect your ears!\n- Compatible with all audio and video players with headphones jack output.