No free exchange.
1. Maintain sustainable operations: Siemens crystal bud stone is a patented technology, and its replacement requires labor and resource costs. By charging for replacement, Siemens can maintain sustainable operations and ensure high-quality after-sales service.
2. Avoid abuse and indiscriminate exchange: Free replacement of crystal bud stones will lead to abuse and indiscriminate exchange. Charging fees effectively prevents unnecessary replacement requests and ensures that users who really want to replace can receive timely support.