Key Features Product Type Headphone Wearing Style Headband Recommended Use Calls/Music Product Color Black Headset Type Monophone Operation Key Answer/End Call, Mute, Reject Call, Volume +, Speaker Type Control Unit SCR Control Unit Cable Length 0.8 m Cable Color Black LED Indicators Yes HD Voice Yes Clear Sound Yes Plug & Play Yes Certification FCC Compatible Products T41S/T42S/T48S/T42U/T43U/T43U/T46U/T48U/ T53/T53W/T54W/T57W/T58A/VP5 Ports & Interfaces Transmission Technology Wired & Wireless USB Port Yes USB Port type USB Type-C Bluetooth Yes Bluetooth version 5.1 Wireless range 10 m Headphone position Headphone speaker On-ear Maximum load 10 mW Headphone frequency 20 - 20000 Hz Impedance 32 ohms Headphone sensitivity 115 dB Driver unit 3.5 cm Microphone type Boom Microphone frequency 100 - 14000 Hz Microphone sensitivity 44 dB Integrated microphone orientation Unidirectional microphone noise-canceling