Q: What are the key precautions and tips I should know?

A:

- Usage duration: No more than 20 minutes per session. Use on the same area no more than twice a day to avoid excessive muscle fatigue.

- Special groups: Pregnant women, diabetics, and post-operative patients are advised to consult a doctor before use and start from the lowest setting.

- Cleaning and maintenance: Wipe with a dry cloth or alcohol swab. Do not wash with water. Keep the base dry when charging.

- Safety certification: Passed safety certifications in multiple countries. No pressure to be listed on shelves in compliance. However, the manual still needs to be adjusted according to local regulations.