Technology is improving day by day, but the advancement is leaving many of us trapped in the comforts and luxuries, imposing multiple side effects on our health. Earphones are very small gadgets, but there is a huge list of side effects using them and the list is increasing every day. We see many people walking around with earphones, including us. Earphones not only affect the user but also the surroundings. This is hard to believe, but it’s true. Objective: The aim of the study is to assess the knowledge regarding hazards of earphone usage among high school student of Mangaluru. Method: A descriptive design and non-probability purposive sampling was used to collect the data. Self-structured knowledge questionnaire was used to collect the data from 100 samples. Result: The finding of the study revealed that 47% of the study sample had good knowledge and had the average knowledge and 6% of students had poor knowledge regarding hazards of earphone usage. The data also showed that there was no significant association between knowledge score of students regarding hazards of earphone usage and the selected demographic variables. Conclusion: Within in the limitations of the present study can be concluded that the knowledge of the high school students regarding the hazards of earphone usage was good.
