Standard 40mm Hi-Fi driver， well-defined trebles.Designed with 40mm large-diameter driver unites and can offer you the super bass and clear music.Super soft PU leather earmuffs， wearing more comfortableAdjustable headband and earmuffs. Can perfectly fit for different people.Excellent stereo headset with super bass sound qualityCompact folding design， adjustable headband， fit for more people