Multi-Pack Of 100 Personal Headsets With Steel-Reinforced Mic, TRRS Plug And Foam Ear CushionsHamiltonBuhl® Super-Affordable Series of personal educational headsets are designed with maximum functionality and affordability in mind. These durable yet affordable headsets come with a steel-reinforced gooseneck microphone, 3.5mm plug, foam ear cushions and are ideal for use with tablets, mobile devices, computers, MP3 players, CD players and much more.