At Black Adjustable Circumaural Over-ear Earphone Stero Headphone 3.5mm for Iphone 4s Iphone 5s Galaxy Note 3 and Smart Phone Unit is high-fidelity .This is one of music headphones simultaneous Particularly enhanced bass. It can bring good effects of the game and movie. Use environmentally PVC material,the product is reliable and durable. It can be folded. It is easy for carrying Invisible headset easy to use