■The failure damage caused by sweat or moisture corrosion of the USB charging port is not covered by the warranty (please use this product with care)■ When water or liquid is attached to the USB charging port, charging is prohibited, which may lead to corrosion of the charging port or a short circuit, resulting in heat, smoke, fire, or electric shock and other malfunctions, remember the precautions for the correct use of this machine: Remember the following precautions for the correct use of this machine■Never use the charger with the charging port cover tightly closed to prevent water from entering the charging port and prevent charging.■When this headset is wet with sweat or water, be sure to wipe off the water with a soft, dry towel and allow it to dry completely before charging. Do not rinse this headset in water, it is not waterproof.