Louroe Audio Monitoring LA-1000 A device that restores the level of audio signal that is lost through long transmission. Installed between the microphone and base station. It allows for cable runs up to 1000 feet from the microphone to the LA-1000, and up to 1000 feet between the LA-1000 and base station, for a total cable length of 2000 feet. 12 Vdc, 500mA power supply included.