Ideal Stereo Headset: Padded earcup and headband with in-line control on cable for easy access to control audio volume. Unidirectional 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 classrooms or home. Universal Fit: With an adjustable microphone boom mic, headband and leatherette ear pads, this headset can be adjusted to fit most head sizes. Designed to be worn with the microphone boom on the left- or right-hand side.