Philips SHL1000/28 Lightweight Headphones (Black) 32 mm Speaker Driver: Compact for wearing comfort yet big enough to deliver crisp, powerful sound, the 32 mm speaker driver is a perfect size for non-distorted listening enjoyment. Ultra Lightweight Headband: The slim, lightweight stainless steel headband is so light you'll hardly notice you're wearing it. Simple Headband Design: Very simple headband design, but is fully adjustable to fit every head size. Cushioned Earshells: The whole earshells are completely cushioned with soft foams. You will feel so comfortable that you can hardly notice you are wearing it. The headphone can fold down to a small size for convenient storage when not in use.