Digital microphone amplifier board featuring speaker microphone preamp circuit with advanced signal processing capabilities.
| Working Voltage | DC12-24V / AC5-12V |
| Reverberation Chip | PT2399 |
| Operational Amplifier | NE5532 |
| Output Channel | Stereo |
| Frequency Response Range | 25Hz ~ 17KHz |
| Dimensions | 117 × 53mm |
| Weight | 75g |