Tips: for 2pcs knobs , it have three colors . black , gold or silver, we delivery random .

Due to transportation safety considerations, the product default no assembly. As shown in the second picture.

Support moving coil and computer electret microphone and the majority of wireless microphone.

Working Voltage: 12V-24V DC

Model: PT2399+NE5532

Microphone amplifier chip: NE5532

Reverberation main chip: PT2399

Package included:
1x Microphone Karaoke Sound Board
2x Knobs (color random)
1x Power cable
1x Audio cable
1x With Panel

• This product circuit design is reasonable, beautiful, low noise, reverberation continuously adjustable input voltage 12-24V
• DIY PT2399 Microphone Amplifier Board Digital Kara OK Reverberation Reverb Module
• Product with panel total size is : 119x 45x 36 mm, please you see my main photo
• Support moving coil and computer electret microphone and the majority of wireless microphone
• Note: This product is not supply any instructions, please note about this before order it

This product circuit design is reasonable, beautiful, low noise, reverberation continuously adjustable input voltage 12-24VQianson