Philips Premium Lightweight Deep Bass Stereo Headphones Super Lightweight - Provides a snug and comfortable fit, while the soft on-ear cushions provide lasting comfort Neodymium Drivers - Large 30mm neodymium drivers provide crisp, natural audio with a wide frequency response Folding design for easy portability - The collapsible construction and swivel earcups make it easy to stow the headphones in a backpack or bag for travel Pressure-Relieving Earpads - The adjustable headband with swivel ear pads is designed for comfort so you can enjoy extended listening sessions without fatigue Gold-Plated 3.5mm Plug - The cable provides plenty of slack and has a slim gold-plated 3.5mm plug that provides compatibility with a variety of MP3 players, CD players, smartphones, laptops, and more