AVID knows that the classroom environment is one of the roughest places for any technology device. Thats why the AE-42 is designed to be one of the most robust thin-profile headset solutions on the market. The headset has minimal moving parts and a ruggedized headband to withstand even the toughest mechanical abuse. The braided nylon cord is woven to exacting specifications that are designed to prevent even the most tenacious child from chewing the cord apart.