Function introduction
A: multi channel signal input switch, two-way audio output, two microphone input.
B: smart dual decoding card reader, WMA/MP3 and other audio formats, support USB/SD/MMC card and other media.
C: music volume and microphone volume can be adjusted independently, with a microphone reverberation adjustment function.
Distortion rate 2%

The signal-to-noise ratio is more than 83db
Impedance 4 - 8
Rated voltage 220V
Rated power 2*30W
Box size 360*213*75MM