... 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 ... case, S/M/L silicone earpiece metal housing HA-FX3X Stereo headphones