Edifier K550 SINGLE PLUG HEADSET 30mm Neodymium Magnet drivers for pure sound Soft foam pad and lightweight for a boundless listening experience Separate volume and mute slide control on the connector cable Adjustable microphone 3.5mm audio connector + 3.5mm splitter cable Specification Cable Length 2m Connection 3.5mm/4 pole/straight Weight 89g Frequency Response 20Hz - 20KHz Driver 30mm dynamic driver