- standard size of winding 1/3 (inner diameter is about 41 mm; outer diameter is about 133 mm);
- connection: USB connector;
- high-quality cable for generator connection;
- flexible lead-in cable and elastic input damper for coils in a plastic case (therefore, the cable does not break);
- reliability and beauty of the design;
- high-quality ABC-plastic or polished plywood;
- coil is completely plywood-covered from either side.