To summarize, here is a one-page cheat sheet for your Qubo line:
No headphones? The manual says: “Wrap charging cable around phone three times clockwise, then insert bare end into 3.5mm jack halfway.” movil qubo manual
Searching for a typically points to user guides for their range of senior-friendly flip phones (like the X-28 Go to product viewer dialog for this item. or NEONW) or their budget Android smartphones. Quick Setup Guide for Qubo Phones To summarize, here is a one-page cheat sheet