Lightweight comfort powerful sound Durable lightweight design Ultra lightweight headband design together with the soft ear cushions make you feel so comfortable that it feels like youre wearing nothing, even for long listening sessions. The earshells can also be swivelled for flat storage.30 mm speaker driver. Compact for wearing comfort, yet big enough to deliver crisp, powerful sound, the 30 mm speaker driver is the perfect size for non-distorted listening enjoyment. Ultra lightweight headband The slim, lightweight, stainless steel headband is so light youll hardly notice youre wearing it. Simple headband design Very simple headband design, but is fully adjustable to fit every head size. Cushioned earshells The earshells are completely cushioned with soft foam & so comfortable that you will hardly notice you are wearing them. Foldable headb&. The headphone can fold down to a small size for convenient storage when not in use.