Start with a reference model
Select a catalogue model or product category, then explain the intended market and use case. Depending on technical feasibility, the discussion can cover branding, colour, frame direction, electrical system, display, battery, packaging and other project-specific options without implying that every option fits every model.
A practical review sequence
The project review follows requirement collection, reference-model selection, configuration discussion, sample or specification confirmation when applicable, production coordination and packing preparation. Scope, timing, documentation and commercial terms remain subject to written confirmation for each enquiry.