The SMM-A1 acoustic microphone replaces the SM3-A1 and is for use with the Song Meter SM3, SM4, SM3BAT or SM4BAT recorders. It has been redesigned with increased gain which improves the signal when used with cables (up to 100m).
This microphone is completely weatherproof and has a frequency response of 20Hz - 20kHz.
Supplied with a 3 metre cable.
Wildlife Acoustics Microphone Guidelines