radio shack 2100164 mini mobile cb radio

I picked up 2 today from radio shack .I been looking on the web for a mod /peak and tune for this radio I seen in the inside has a adjustments to meter and squelch setting don't seen anything for. Mod or power adjustment I no it could be a reaster that could be cut I can not find a. Schematic on this radio any body no where them adjustments would be or where I can find an peak and. Tune or many putting in a. Swing. Kit anybody no thanks

radio shack 2100164 mini mobile cb radio