Technologies 3M is a pioneer in developing and applying technologies in new and ground breaking ways. At 3M Indianapolis, we utilize the following technologies: High Speed Automated Assembly and Converting (Ac, Rp, In) Molding (Mo, Rp): Polyurethane & TPE Injection (Po, Pp) Integrated Packaging (Fc) Electronics Hard goods Assembly (Es, Em, Im, Fe, Ac, Ad, Sm, As, Nt) Audiometric Accessories (Em) Zero Landfill Products & Services Our products include a large variety of ear plugs and communications hearing protection. Our communications headsets are used by the military, law enforcement, and industrial applications. These products include: Disposable Ear Plugs Reusable Ear Plugs Communications Headsets In Ear Hearing Protection In Ear Communication