 Today, Knowles continues to be a global supplier of communication-technology components, such as MEMS (micro-electro-mechanical systems), microphones, speakers, receivers, transducers, capacitors and oscillators.Dover CEO and president Robert Livingston described the spinoff as allowing both Knowles and Dover to more aggressively pursue their individual growth strategies.In 2015, Dover sold Sargent Aerospace & Defense to RBC Bearings.