The earbuds have an IP54 protection rating (level 5 dustproof and level 4 waterproof), based on the IEC 60529 testing standard, tested under controlled laboratory conditions. However, the charging case is not designed to be waterproof.
The earbuds are not designed for swimming or other water sports and should not be worn in the shower. If you use the earbuds while training, sweating heavily or splashing water, please wipe them clean with a soft, dry, lint-free cloth before placing them back in the charging case. Do not use heat or compressed air to dry the earbuds.
Please note that damage caused by immersion in liquid is not covered under the warranty.