This Signi/Connexx NanoCare wax guards are replacements for the Connexx 3.0 range, including the Signi/Connexx Mini Receiver 3.0 and Signi/Connexx Thin Tubes 3.0. Each wax guard is pre-mounted on a stick for easy replacement and is suitable for both left and right ears. Compatibility: The Signi/Connexx Nanocare wax guard 3.0 is only compatible with the Signi/Siemens/Connexx 3.0 Mini Receiver or the 3.0 Mini Tubes. The Signi/Connexx Nanocare Wax Guard 3.0 is a vital accessory for maintaining the performance and longevity of your Signi/Connexx receiver-in-canal and receiver-in-the-ear hearing aids by protecting them from earwax and debris. Regular replacement of the wax guards is essential for optimal hearing aid performance. When to Replace: *Replace your Nanocare filters if you notice a change in sound quality. *Replace your Nanocare filters if there is a decrease in your hearing. *It is recommended to replace your Nanocare filters every two weeks ideally. Tips for Optimal Performance: *Replace the wax guards regularly, ideally every two weeks, to prevent wax buildup and maintain peak performance. *If you notice a change in sound quality or a decrease in your hearing, then it’s time to remove and replace the wax guard with a new one. *If you have oily ear canals, consider replacing the wax guards more frequently to keep your hearing aids clean. *Store your Nanocare wax guards in a cool, dry place to prolong their effectiveness.