The Bobwire AAT1 is an ultra-sensitive analog audio detection device with 12V trigger outputs and an expansion relay. The instant audio is detected at the RCA inputs, the 12V trigger outputs will be energized and the expansion relay will close. The AAT1 will wait anywhere from 1 second to 10 minutes (reset delay) after the audio stops before turning off the 12V triggers and opening the expansion relay. This reset wait time is determined by the setting of the Reset Delay adjustment knob. How loud the audio signal must be to trigger the AAT1 is determined by the setting of the Audio Trigger Sensitivity knob. A common use for the AAT1 would be to turn on a power amplifier equipped with a 12V trigger Input.