Huawei WATCH FIT mini User Guide - Page 27

More 2. It is forbidden to change the application scenarios or conditions, expand the transmit frequency range, increase the transmit power (including installing additional RF power amplifiers), or change the transmit antenna without permission. 3. The product shall not cause harmful interference to other legal radio stations, and a request for protection against harmful interference shall not be proposed. 4. The product shall withstand interference from industrial, scientific, and medical (ISM) devices that radiate radio frequency energy or other legal radio stations. 5. If the product causes harmful interference to other legal radio stations, stop using it immediately and take measures to eliminate the interference before continuing to use it. 6. The use of civil and military radio stations such as radio astronomy stations, meteorological radar stations, and satellite earth stations (including measurement and control stations, ranging stations, reception stations, and navigation stations) inside aircraft and in accordance with laws and regulations, relevant national regulations, and standards, as well as the use of micropower equipment in the electromagnetic environment protection areas such as airports, shall comply with the regulations of the electromagnetic environment protection and relevant industry administrative departments. 7. It is forbidden to use model remote controls in an area with a radius of 5 kilometers with the center of the airport runway as the center. 8. The NFC feature of the product shall work at room temperature and is powered by its own battery. 25