Reverse-engineer the circuit from IMG_20261012_190702.jpg (component side) and IMG_20261012_190723.jpg (copper side).
Observations from the supplied photos
An irregular single-sided board with several exposed switch-contact patterns on the copper side.
The component side has two visible axial resistors labelled R1 and R2, two upright capacitor-like components, and a small black component whose marking is not legible at this resolution.
Green and yellow wires lead to a round piezo-like sound element visible in the copper-side photo.
Visible legends include SP+, B+, GND, SELECT SOUND, ON, OFF, UP, RIGHT, DOWN, LEFT, K.LOW and K.HGH. These labels are observations, not verified net assignments.
I reviewed both photos and saved the visible components, switch contacts, and board labels in Circuit Mapping Notes; I haven’t traced or created the schematic yet, so the design remains empty. Completing the map needs clearer component markings and verification of ambiguous copper connections; creating the schematic requires Agent mode.