The H2 Headset is a binaural headset with a simple and stylish design perfect for the office/remote worker and is fully compliant with our range of IP phones, models A10, B20, C30, D40, and E50. The H2 is made from lightweight materials with an adjustable headband, super comfortable padded ear cushion, and a pivoting flexible boom mic that can be rotated so that the user can wear the headset on either the left or the right.