Lectrosonics HM162 - Dual Capsule Noise Canceling Headset Microphone (2.5mm Plug)The HM162 headset microphone is a lightweight, noise cancelling design for use with high output PA systems. The comfortable, over the ear headband and flexible boom place the pickup capsule in an optimum location just to the left of the user's mouth. The headband keeps the pickup in this position as the user moves about, leaving the hands free for other tasks. A bi directional, dual element, noise cancelling microphone capsule rejects extraneous sound