Technical data: Super Bass£ºYes Material£ºWood/Plastic/Metal Speaker size£º10 mm Frequency response£º18 --- 20000Hz Impedance£º32 Ohm Sound pressure level£º116dB(at 1Khz 0.5 Vrms) Length£ºHeadphone cable:1.20m Plug£º3.5 mm plug Headphone Net Weight£º11g Dimensions£º17.5x8x3cm Package£º1x Wooden Headphone; L/M/S ear cushion.