Features
- Working voltage:DC3.7V-15V
- Ultra-small volume dynamic microphone preamplifier board, two-channel design, suitable for a single lithium battery-powered, using AD828 fever op amp chip, suitable for low voltage power supply (3.7-15V)
- This microphone amplifier board without power regulator circuit, can only use the battery or linear power supply, can not use switching power supply, otherwise there will be interference
- If you only used one channel, the other channel needs to short-circuit the input with GND, to avoid interference with the signal crosstalk
- Size:3.2x2cm/1.3×0.79inch





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