س: ما هي الفئات التي تناسب أكثر اختيار طراز USB بدلاً من اللاسلكي؟

ج:

 The following scenarios are recommended for the USB model:

1. Limited budget, only basic massage is needed (air pressure + heat therapy + vibration already cover 80% of relaxation needs);

2. Sensitive to light (such as being afraid of red light interference when using at night);

3. Used to carrying power banks and pursuing maximum battery life (3-4 days longer usage time than the wireless model).