Bolt Technology Corporation consists of three operating units that manufacture and sell marine seismic data acquisition equipment: Bolt Technology Corporation (Bolt), A-G Geophysical Products, Inc. (A-G) and Real Time Systems Inc. (RTS). Bolt develops, manufactures and sells marine seismic energy sources (air guns) and replacement parts, and is referred to as the seismic energy sources segment. A-G develops, manufactures and sells underwater cables, connectors, hydrophones, depth and pressure transducers and seismic source monitoring systems, and is referred to as the underwater cables and connectors segment. RTS develops, manufactures and sells air gun controllers/synchronizers, data loggers and auxiliary equipment, and is referred to as the seismic energy source controllers segment. In May 2008, the Company completed the selling of Custom Products Corporation (Custom), a wholly owned subsidiary of Bolt.