Sanqi method: three: 1, understand and explore product characteristics. 2. Find user needs and pain points. 3. Understand the competing products of peers.

Seven: 1. What problems can our products solve? 2. What are the interesting details of our products? 3. What design and manufacturing details can our products solve? 4. What pain points can our products solve? 5. Who, things and brands speak for themselves, which can show consumers an ideal prospect. 6. What are the weaknesses of competitors that we can do well? 7. What problems can our products solve and why?