Silicon Microphone With High signal to noise ratio, clearer pickup, good effect. Gain adjustable.
Wide range of uses:such as hearing aids, pickups, conference microphones and more.
R5 is the gain adjustment resistor, the resistance can be used 4.7k-100k (chip resistors next to set aside the plug-in pad, if there is no patch resistance or welding technology is not good, you can use the plug-in resistor), the greater the resistance , The higher the gain.
Basic parameters:
Working voltage: DC 3v-6v
Board size: 16mm * 15mm
The default gain: 40db (you can also adjust the gain, change the resistance of R5 can be)
Package
1pc