You probably use your tablet or smartphone often to stream music, TV shows, or movies. In fact, many websites these days auto-play videos regardless of whether you want them to. Smartphones, tablets, and other types of portable music players (PMPs) are now commonplace, as are earbuds and headphones. But if your PMP is turned up too loud while wearing earbuds or headphones, you can damage your hearing quickly. Let’s look at why.