metal housing HA-FX3X Stereo headphones 1.headphones,earphones 2,NO MOQ, Accept big order, mix, small order 3,factory price metal housing HA-FX3X Stereo headphones Metal housing & carbon diaphragmHeadphones HA-FX3X Driver Unit 0.39" (10mm) Magnet type Neodymium Frequency Response 5-25,000Hz Nominal Impedance 16ohms Sensitivity 104dB/1mW Max. Input Capability 200mW (IEC) Cord Length 3.93ft(1.2m) ...