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, headband and leatherette earpads, 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.