KM-04 Micro Mixer
Boss "New Scene" 1986:
An ultra compact mixer which fits in the palm of your hand, the KM-04 provides 4 input channels and 1 output. A peak indicator is provided to help set optimum level settings.
Boss Pocket Dictionary Vol.1-6 (1984-1989)Palm-Sized 4-Channel Micro Mixer.
The ultra-compact design of the KM-04 allows it to be placed anywhere, while its battery-powered operation allows it to be
used anywhere. And yet despite its compact dimensions, the KM-04 incorporates four input channels and one output channel.
In addition, the KM-04 comes with a peak indicator that helps ensure optimum settings 73 for crisp, clear sound.