Universal Stereo USB Headset: Comfortable padded ear cup design with In-line control on cable for easy access to control of audio volume and control microphone mute. Unidirectional noise cancelling Microphone minimizes unwanted noise, Microphone only picks up sound from a specific side or direction of the microphone minimizing ambient noise while speaking or recording. Perfect for K12 classroom, home or office. One Size Fits All: With an adjustable headband and leatherette ear pads, this headset can be adjusted to fit most head sizes and with a flexible microphone boom arm to put the mic in just the right position to be heard clearly. Durable Design: Adjustable and flexible headband with easy to clean leatherette ear pads. Headset and robust cable designed for hard wearing and to be long lasting for student, personal or professional use. Easy to Use: Simply plug in and play, no installation needed. Connect the USB cable directly to your Mac or PC with no software installation needed. Includes: Cyber Acoustics AC-6012 USB Headset and User Guide. Includes 1 year hassle free warranty. Please also refer to the Setup video as shown in the thumbnail images for additional help in setting up or adjusting the audio settings.