![Microphone 9.4 x 6.7mm](http://store.fut-electronics.com/cdn/shop/products/microphone_82daf499-77ae-4cfe-957c-ce899b02cf27_1024x1024.jpg?v=1439764215)
Electret microphone is a sound- electrical conversion device. It is used in telephones,wireless telephones, mobile phones, ear-telephones, recorders, radio recorders, alarms, voice control toys, voice control switches and more
Note: Check photo below to find the ground
Specifications:
- Size: 9.7 x 6.7mm
- Directivity: omnidirectional
- Connection: solder type
- Sensitivity: -28 to -58dB
- Standard operating voltage: 3V
- Impedance: 2.2K Ω