2 days of use and amazed! Bandwidth 8 htz / 24000 htz. Deep bass sounds rich and balanced non-aggressive! This headphone is in addition a headset for iPhone iPad, headphone headset folds and each rotates up to 180 degrees. Provided with a large storage pouch for headphones and accessories. This headphone is suitable for all styles of music, it is super light to carry and the ear is not pressed by the headphone ... Excellent finish. I tried blues, rock, metal, soundtracks, sounds with big beats ... Everything goes well the French variety is enhanced by this headphone! Do not miss it!