Electret Microphone suitable for use with our DTMF Decoder kits.

Frequency response 50Hz to 12kHz
Impedance 300Ω
Sensitivity  –60 ±3dB (0dB = 1V/1µ bar, 1kHz, V_CC = 4.5V, R_L = 1K)
Operating voltage  1.5V to 10V (standard voltage 4.5V)
Dimensions 10 x 7mm
Signal to noise ratio >40dB
Current drain 0.4mA max
Maximum input  120dB SPL