The Kenwood kmc-45d mil-spec speaker microphone provides a great level of audio output, in addition to voice clarity when receiving and transmitting. This unit is the replacement for the kmc-45. This heavy duty speaker microphone with built-in 2.5mm Miniature earphone Jack is one of the best military spec remote speaker microphone on the market and at a great price. Heavy duty speaker microphone with a 2.5mm (listen only) Miniature earphone Jack comes with a swivel clip. The kmc-45 from Kenwood is a heavy-duty speaker microphone, ideal as a companion for mobile radio applications. The microphone is mil-spec IP54/55 rated for water and dust intrusion to ensure a long and reliable lifespan. This microphone can be used with the kep-2 earpiece. Kenwood USA is a leading developer and manufacturer of consumer electronics and Communications equipment. Founded in the United States in 1961, Kenwood USA is the largest sales subsidiary of Kenwood Corporation of Japan and is recognized by consumers and industry professionals for providing products known for quality, performance, and value.