<br /> <br />Adjustable and foldable <br />The headphones offer an adjustable contoured headband,it allows you to get a great position on your head.Foldable compact design 90-degree ear cups provide extra flexibility, portability, and durability.Easy to carry and save spaces. <br /> <br />Lightweight and Lasting comfort <br />Lightweight and comfortable concept, featuring 40mm drive units. Large Angle of rotation make sure that it can more fit your wear it .Soft leatherette foam ear pillows ensure supreme comfort. <br /> <br />Wide compatibility <br />These headphones use 3.5mm audio plug is compatible with all most of phones, computers, audio players and tablets. <br /> <br />Specification: <br />Driver diameter: 40mm <br />Impedance: 32+/-15% <br />Sensitivity: 103dB +/- 3dB <br />Frequency range: 20-20KHz <br />Plug type: 3.5mm <br /> Cord length: 1.5m+/-10%