The Learner LNR66USB is one of the most popular full sized school headsets in K-12 Education. It's legacy design has been a staple in K-12 computer and language labs for decades. They have been widely accepted and approved for various state testing initiatives. It is currently regarded by many educators as highest quality, lowest priced headset of its kind. The Learner LNR66USB heasdset has a USB plug that is compatible with all Windows, PCs, Macs, and Chromebooks with a USB port. Its drivers provide clear sound reproduction and it's microphone is designed for clarity even in noisy testing environments.