With their small, lightweight design, the Jamsonic Foldable DJ Headphones are ideal anywhere, anytime. When you are on the go, these foldable, solo headphones collapse effortlessly, so you never have to miss a second. These DJ headphones offer superior noise isolating capabilities, so you hear everything coming through crystal clear. That great sound is also due in part to the HD features. These headphones come with a 3.5 millimeter jack.