The rating of a speaker indicates its resistance to external influences such as water and dust. It is indicated by an IP code consisting of two digits. The first digit refers to dust resistance, the second digit to water resistance. The higher the numbers, the higher the resistance. For example, an IPX7 speaker is resistant to temporary immersion in water, while an IPX8 speaker can be permanently immersed in water. Before purchasing a speaker, it is important to consider the environment in which it will be used and choose one that has the appropriate rating.