Features:
Sensitivity:                       -44 dB (0 dB = 1V/Pa)
Impedance:                       2.2 kOhm
Directivity:                        Omni-Directional
Current consumption:         0.5 mA
Frequency Range:             100...10 000 Hz
Frequency Response:        +5...-7 dB
Weight:                             less than 1g
Operating Voltage:             3...10 V DC

Useful links:

• Example Audio LED control project by Adam Greig

• [Data Sheet]: Electret Microphone (50404) Datasheet
• [Data Sheet]: