Do Not Use Too Much Volume When Using Headphones. Excessive Volume Leads to Hearing Impairment and Is Permanent. Once Hearing Is Impaired, It Cannot Be Recovered. Therefore, Fans Who Listen to Music at High Volume for a Long Time Or Often Listen to Music in a High Decibel Environment Should Pay Special Attention. Tinnitus Is a Common Symptom of Hearing Impairment. If This Phenomenon Occurs, It Is Better to Take a Rest for One Or Two Days and Do Not Use Headphones.