BRAND NEW & ORIGINAL WITH 1 YEAR SERVICE WARRANTY ══════ ⋆★⋆ ══════ HIGHLIGHTS: High Performance . Light-Weight Design . Rotatable Mic. Boom . Superior Ear Cushions . Volume Control/Switch . Noise Cancelling Unidirectional Mic *Note: need to download softwares like Krisp to cancel some soft and loud noises . HEADSET: Speaker Unit: 40mm HD Driver Frequency Response: 20 Hz - 20 KHz Sensitivity: 105 dB Impedance: 32 ohm . MICROPHONE: Frequency Response: 100 Hz-10 KHz Sensitivity : - 44 dB . CABLE: Cable Length: 200 cm Port: USB System Requirement：Windows 7/8/8.1/10/11，Mac OS X . WHAT'S IN THE BOX? HU-10 Headset . Please see product photos or message us for more details~ ══════ ⋆★⋆ ══════