Motorola RLN6232, Low Noise Kit - Clear Acoustic Tube Assembly includes 1 Clear Rubber Eartip. For Low Noise Environments. The Quick Disconnect Adapter allows users to easily remove or alternate Acoustic Tubes (for used with Surveillance Accessories). Black, The coil translucent tube attaches to 1, 2, and 3-wire surveillance kits (except PMLN4606). The attached clip prevents the accessory from being pulled from the ear due to body movement or head rotation.