Design: Robust pocket box without sealing. Recessed control area for membrane keyboards. Screw pillars prepared for mounting PCBs in the top and base. Battery compartment accessible from the outside with screwed battery compartment lid in case bottom. Battery compartment for 1 x 9 V flat battery (PP3) or 2 x 1.5 V mignon cell (AA).
Supply: case-top and base, battery compartment lid, assembly kit.