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ETS SM6 Complete Single Zone Audio Surveillance Kit W/ SM1 Microphone and SM3 Amplifier
The ETS SM6 is a complete single zone audio surveillance system with a built in speaker and headphone jack. This audio surveillance kit can be used independently for monitoring live audio or with digital recorders for recording and playback.
This audio surveillance kit includes the SM1 microphone as well as the SM3 amplifier for live monitoring via a speaker or headphones.
Features of this kit include a 25' pickup radius from the microphone, adjustable gain, a treble boost circuit, and 12VDC power use. So if you're looking for a quality audio surveillance kit, then the SM6 may be perfect for your needs.