Product Description: Professional Earphone Factory Wired Headphpone With Mic And Usb Or 3.5mm Plug Option Product Description Driver Diameter:∅ 40 mm Impedance:32 Ohms Frequency Response:20-20KHz Sensitivity:105 dB SPL at ...learn more
U.S.dollar 3.7Driver Diameter:∅ 40 mm Impedance:32 Ohms Frequency Response:20-20KHz Sensitivity:105 dB SPL at 1 KHz Cord Length:2.2m Rated Power:40mW Power Capability:50mW Plug:USB /pc