This is a 4 channel mono mixer with volume controls on each channel and a master volume on the output.
It is very compact and ideal for mixing on computers and sound modules or keyboard outputs together in a classroom environment.
All of the inputs and outputs on this mixer are 6.35mm jack plugs.
This is powered by 1 x 9V battery or optional PSU - 9Vdc @ 500mA.
148 x 46 x 86mm