The Buds Pro have an IP54 rating (class 5 dustproof, class 4 waterproof), based on the IEC 60529 test standard, tested under controlled laboratory conditions. The charging case has an IPX2 rating (splashproof), based on the IEC 60529 test standard, tested under controlled laboratory conditions. The dustproof and waterproof functions are not permanent and may be affected by factors such as daily wear and tear or aging of the earbuds.Do not charge the earbuds when they are wet. The Buds Pro earbuds are not designed for water sports such as swimming and should not be worn in the shower.If you sweat a lot due to physical exercise, get water splashed on you, or experience other similar situations while wearing the Buds Pro earbuds, wipe them clean with a soft, dry, lint-free cloth before returning them to the charging case.Do not use heat or compressed air to dry the Buds Pro earbuds. Please note that damage caused by the Buds Pro earbuds being immersed in liquid is not covered by the warranty.