比如蓝牙要FCC，儿童用品要CPC

1. USB desk fans / clip-on fans for home, office or stroller use, which are usually cheaper and more versatile than hands-free neck fans for stationary cooling.
2. Portable handheld fans, especially foldable 2-in-1 handheld-to-desk models, which often satisfy the same personal cooling need at a lower price point.
3. Rechargeable waist clip fans / belt fans that blow air under clothing, a strong substitute for users seeking personal cooling outdoors or at work without wearing a neck fan.
4. Cooling towels and evaporative cooling wraps, which are low-cost, widely accessible alternatives for commuting, sport, festivals and outdoor work.
5. Mini air cooler / desktop air circulator devices for bedside or office use, which can replace the need for a neck fan when cooling is needed mainly in fixed locations.
6. Stroller / pram fans and clip fans for parents, since some buyers searching portable fan solutions may choose targeted clip-on cooling instead of wearing a neck fan themselves.
7. Traditional folding fans or premium manual fans for travel/events, especially as ultra-cheap, no-battery alternatives for light personal cooling needs.
8. Wearable cooling devices beyond neck fans, such as cooling vests or cooling scarves, for users focused on outdoor work, sports or heat management rather than casual convenience.

有替代品会影响你的风险