The earphones have an IP55 protection rating (level 5 dustproof and level 5 waterproof), based on the IEC 60529 testing standard, tested under controlled laboratory conditions. However, the charging case is not designed to be waterproof.
The earphones are not designed for swimming or other water sports and should not be worn in the shower. If you experience physical training, heavy sweating, or splashing water while wearing the earphones, 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 earphones.
Please note that damage caused by immersion in liquid is not covered under the warranty.