The CC-300 single-ear headset features high ambient-noise attenuation headphones and a hyper-cardioid dynamic microphone that provide high quality audio. The headset has a flexible design and a soft-ear pad to offer superior comfort. Able to rotate 300 degrees, the microphone boom acts as an On/Off switch for quick microphone muting.Features:Single-ear standard headsetHigh quality dynamic cardioid microphoneHigh ambient-noise attenuation headphonesMicrophone: 300Hz – 20kHz frequency responseHeadphone: 40Hz – 20kHz frequency responseCushioned with soft leatherette paddingFlexible gooseneck microphone positioning300-degrees boom mic rotation for ON/OFF mic-mute switchRugged design