Headphone Being the OEM supplier for many major brand names in the world, we produce more than half million pieces headsets per month. Our knowledge in speakers, receivers, microphones and also shielded cables have led us to make the right headsets of different specifications to different applications in telecommunication and multi-media market Dynamic receiver - Impedance : 32 ohm Spl : 102 db/mw Nominal power : 20 mw Maximum power : 35 mw Freq. Response : 160 - 10k hz Ecm microphone Impedance :
