About 58 percent of teachers develop a voice disorder in their lifetime due to the long hours spent flexing their voice box. While there can’t always be a PA system in the classroom, one solution is to bring the microphone with you. A small, portable voice amplifier does the job for as little as $30.
We all need earplugs, but when they don't fit perfectly, or they don't sound good enough, we cast them into a drawer... much to the dismay of our ears. Here are 2 sets of earplugs that actually do the job, and produced a balanced, non-muffled sound.