The 3M™ Scott™ EPIC 3 Voice Amplifier provides robust, person-to-person communications in a sleek, streamlined design that projects the voice in the direction the user is facing. Scott Safety 201275-01 EPIC 3 Voice Amplifier, For Use With Scott Air-Pak SCBA, AV-3000 and AV-2000 Facepieces. NFPA/NIOSH Approved Compatible with 3M™ Scott™ AV-Series facepieces, Air-Pak SCBA, air- supplied and air-purifying respirators, the EPIC 3 Voice Amplifier enables clear voice communication. Contained in a sleek, streamlined package, the EPIC 3 Voice Amplifier projects the voice in the direction the user is facing. Combined with a 50-hour battery life, an automatic shut-off feature deactivates the device once it has been idle for 20 minutes to help preserve battery life. Both a visible and audible low battery alert warn the user when approximately 10 percent of battery life remains