Tips：

1. Since the foam tips tightly fit your ears, you may feel ear strain. If it hurts, please stop using it.

2. Please don't press the memory foam for too long, which may cause it deformed and difficult to recover.

3. Use dry cloth to clean the surface if it's dirty. Don't use wet cloth or alcohol.

4. When the foam tips are soaked, drain the liquid sufficiently and ensure that the tips are dry before use or storage.

5. The memory foam will deteriorate due to long-term use and storage. If it degraded performance, please replace the ear tips.