Feature:1. The single‑sided design is very suitable for listening to the surrounding environment during a desktop call.2. The flexible and 330° rotatable microphone can be located on the left or right side and can better the sound.3. Made of high‑grade ABS material and soft protein ear pads, it provides an ultra‑light fit.4. Extensive compatibility, USB plug and play, PC, computer, laptop, USB compatible devices do not need drivers.5. Convenient wired control, volume control up/down, microphone mute on/off, speaker mute on/off.How to Use:Plug and PlaySpecification:Item Type: Single Ear Telephone HeadsetModel: OY131Material: ABSColour: BlackMicrophone: OmnidirectionalWire Control: Volume Adjustment, Microphone MuteInterface Type: USBImpedance: 32Ω±3%Sensitivity: 108±2dBSensitivity Microphone: -58dB±2dBFrequency Response Range: 20Hz-20KHzDistortion: <0.1%Scope of Application: PC, Computer, Notebook Computer, USB Compatible Device Package List:1 x Headset