MSA's ClearCommand Communication System is designed specifically to meet firefighters' modern communication needs. The ClearCommand System is available in two versions: amplifier, and amplifier with radio interface, allowing firefighting teams to be properly fitted for the job at hand. Innovative design helps to reduce expenses via its shared-use amplifier, reducing individual issue equipment. ClearCommand Systems feature an internally-mounted microphone coupled with a large diameter (2") amplifier speaker for optimal clarity and volume. Using a patented circuit design, the system delivers over twice the volume of a facepiece alone. Mounted in an out- of-the -way position, the ClearCommand System does not block vision or mechanical communication. The Ultra Elite Facepiece's mechanical voicemitter still functions fully with the system installed. The radio interface version features the same amplifier as the amp -only version, combined with an ear-speaker for incoming radio messages, and a push-to-talk assembly for interface with over 100 radio models. Also, the push-to -talk assembly features a front-mounted button for easy use inside HazMat suits, and a lapel mic for use without a facepiece.