The LGL Group, Inc. is a producer of industrial and commercial products and services that is focused on the design and manufacture of electronic components and subsystems. The Company operates through its principal subsidiary, M-tron Industries, Inc. (Mtron), which includes the operations of its subsidiary, M-tron Industries, Ltd., as well as the operations of its subsidiary, Piezo Technology, Inc. (PTI) and PTI's subsidiary Piezo Technology India Private Ltd. MtronPTI's frequency control devices consist of packaged quartz crystals, crystal oscillators and electronic filters. MtronPTI markets and sells its products through a variety of channels and agents. MtronPTI�s operations are located in Orlando, Florida, Yankton, South Dakota, and Noida, India. In February 2014, its primary operating subsidiary, MtronPTI, acquired certain filter product line assets from Trilithic, Inc.