Made in China for the first time, it chooses the high quality red sandalwood of Paraguay to polish with unique manual work; the ear-cap chooses the high quality protein synthetic leather of South Korea with excellent penetrability and skin-friendly effect; the spongy body of ear-cap chooses the import inert sponge which is sanitary and durable, and is hard to be deformed; the Hi-Fi driving unit adopts H neodymium magnet with broad high-low audio, plump tonal quality; the high quality ccaw copper clad aluminum coil makes the tonal quality even better. speaker and wire£º speaker diameter:¦Õ40mm Speaker Resistance: 32¦¸¡À15% Max .Input Power£º30mW Frequency Response Range:20Hz-20KHz Cable Length:2m Sensrtevity:106¡À3db &1K Hz Plug£º3.5mmgold-plated stereo (with§¶6.3mm commutator) wire material: OFC Cable color: black