The purpose of this study was to examine college students' knowledge of intense levels of music on their hearing and the effects of safe listening habits. Method: Four hundred college students (100 each freshmen, sophomores, juniors, and seniors) were surveyed on their knowledge of safe listening levels of personal listening devices (PLDs). Results: College students' knowledge of safe PLD-listening levels was related to gender, college class, and PLD-pattern use. A statistically significant relationship between gender and PLD-pattern use was found: C 2 (1, N = 399) = 8.72, p = .003, Φ = .15. More males reported heavy PLD use and were less knowledgeable than females regarding safe PLD use. Significant relationships were also found between college class N