Does the sales of hearing AIDS last long?

It won't be long. Sales work is generally hard and unstable. Hearing AIDS are aimed at a small number of salespeople and may not be sold. According to WHO standards, the degree of hearing loss is divided into: mild 26-40 decibels; Moderate: 4 1-60 dB; Severity: 6 1-80 dB; Extremely serious: above 80 decibels. Simply put, once hearing impairment affects speech communication ability (for example, it is difficult to answer the phone in a noisy environment and communicate face to face), you should choose hearing AIDS as soon as possible.