Instructions rely on ability to hear
Instructions for an element MUST NOT rely solely on references to sensory characteristics.
When instructions to use content rely on a person's ability to hear, people who are deaf or hard of hearing are at a risk of being unable to understand or follow the instructions. Instructions may include audio cues as long as the information is conveyed in other ways as well, for example in text. Providing additional information other than audio cues will allow people who are deaf or hard of hearing to understand the instructions.
Fix this issue by ensuring that instructions conveyed by audio cues are also available in text so people who are deaf or hard of hearing can still get the information or follow the instructions.