The F2 fan itself has a certain level of sound flow. If the sound becomes louder over time, please provide the following information:
- Product photos or videos.
- Order invoice containing the order number and product information.
- Your recipient’s name, shipping address, postal code, and phone number.
Please send this information to our email: email@example.com . The warranty period for products sold through our channels is 18 months. After we inspect the provided information, we will arrange a replacement within the warranty period.