Aearo Technologies LLC - For more than 40 years, Aearo Technologies LLC has been a leader in energy-control technology. They've pioneered new treatment techniques and developed proprietary, high performance materials that control unwanted energy -- noise, vibration, shock, ergonomic, and thermal control. Aearo customers benefit from real-world applications experience we've gained over the past four decades in the aerospace, commercial vehicle, heavy equipment, and electronic fields. Aearo Technologies LLC is a 3M company.