A4Tech FH200U Conference USB Over-Ear Headphone

Description A4Tech FH200U Conference USB Over-Ear Headphone Specification Speaker Unit: 50 mm Frequency Response: 20 Hz – 20 KHz Sensitivity: 100 dB Impedance: 16 ohm Microphone Frequency Response: 100 Hz-10 KHz Sensitivity : -44 dB Cable Material: Tangle-Free Braided Cable Cable Length: 200 cm Port: USB System Requirement：Windows 10/11，Mac OS X