... , 14000, ISO/TS16949:2002. 2, Soft rubber earbuds and cute design feel very comfortable and easy to bring. 3, Adhering to best service ... answered within 24 hours. 4, Wooden housing is fashionable, durable and anti-corrosion. 5, It adopt precious ebony as raw materials ... rich details, no distortion details; The low-frequency is deep and clear, which is effectively controlled; The whole band is smooth ...