Compact closed back， on-ear design isolates ambient noise to maximize musical enjoyment.;Headband and layered foam ear pads are covered with super soft， breathable and durable Alcan Tara providing comfort and a perfect fit.;18-ohm operating impedance produces outstanding bass response， dynamics and overall output level with portable audio devices;Metal in-line three button control and microphone supports Apple devices like iPod， iPad and iPhone.;2 year global warranty