IPX8 is an ingress protection rating that indicates the resistance of electronic devices, such as headphones, speakers, or MP3 players, against water penetration. The abbreviation IP stands for Ingress Protection. The code typically consists of two digits, where the first specifies protection against solid particles and the second against water. The letter 'X' in this case means that dust resistance was not tested, and the manufacturer focused on water protection. The digit '8' represents a high level of protection, guaranteeing that the device is protected against complete and continuous immersion in water under conditions specified by the manufacturer. This means you can safely use headphones or a speaker, for example, while swimming. It is always advisable to check the specific depth and maximum immersion time in the product documentation, as these may vary between different models.