OK339 Karaoke Reverberation Board Microphone Ampli

Description:

Power supply: 12V-15V AC
Interface: outer diameter 5.5MM, inner diameter 2.1MM
Board size: 140X66MM
Using double precision TL074 as input operational amplifier, good analytical ability, natural sound effect,PT2399 is responsible for sound processing.
Using the microphone automatically mute circuit, when the microphone is not inserted, the part of the circuit is completely isolated and does not affect the reproduction of the music.
Using stepless adjustable technology.
Increased 5V output to connect Bluetooth decoder board, more convenient to use.

Specification:

Material: Plastic
Board size: 158mm

Package Includes:

1 Piece Karaoke Amplifier Board Module

5 Pieces Screw

4 Pieces Nut

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