The CC-300 single-ear headset features high ambient-noise attenuation headphones and hyper-cardioid dyanamic microphones 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.Main Features:Single Ear HeadsetOpen Ear PhoneWeight: 245gLeatherette EarpadsDynamic MicrophoneImpedance Mic/Earpiece: 200ohms/400ohms