Final answer:
Customers with hearing difficulties may need visual aids like infographics, clear spoken communication, written transcripts, and possibly amplification devices tailored to their degree of hearing loss to help them understand the information being presented.
Step-by-step explanation:
Customers with hearing difficulties may require additional assistance to improve their interaction and understanding. Approaches such as visual representation, including infographics and slides, can help convey information and ensure that messages are understood without relying on auditory elements. When conversing, it is vital to speak slowly and clearly, as those with hearing loss may have difficulty with the comprehension of speech, particularly at higher frequencies which are more challenging to perceive. Women's voices, which are generally at higher frequencies, might be harder for individuals with significant hearing loss to understand. Moreover, offering written transcripts of spoken communication or employing sign language interpreters can greatly enhance accessibility.
Amplification devices may be necessary for customers with hearing impairment. For example, a person with a 60-phon hearing loss might not be able to understand speech unless it is at a much louder volume, and even then, it may seem indistinct. It's important to consider the degree of hearing loss, such as a 50-dB loss, and provide appropriate levels of amplification for low-intensity sounds to make them seem normal while avoiding further damage from excessively loud sounds.