Water-resistant: able to resist the penetration of water to some degree but not entirely. Water-repellent: not easily penetrated by water, especially as a result of being treated for such a purpose with a surface coating. Waterproof: impervious to water. App support clean your phone speaker ***IMPORTANT*** For the most accurate results! Please comply with the application's requirements when checking. Thank you!!! You should check 2-3 times for the most accurate results ----------------------------------------------------------------------- Your device have water-resistant but you dont know if it work or not. Check Water-Resitant will help you ***App using pressure senssor for work, it's lightweight and easy to use