Built for student comfort and ruggedness, it delivers high quality voice reproduction that's critical in day to day classroom uses, STEM activities, and assessments. It has comfy, noise-reducing circumaural earcups designed to minimize external distractions and keep students more on task (which also decreases the need to raise the volume to potentially damaging levels).Its audio playback is calibrated to enhance the tonal range of the human voice for use in language learning.Features1. Fully adjustable headband2. Recessed wiring for safety3. Deep, noise-reducing circumaural earcups lower external noise so volume needn't as high, for hearing safety4. Reinforced entry point of the cord into the earcup6. Replaceable 6' straight cord long enough to avoid accidental pull out7. 1/4" mono plug8. Slotted baffles prevent speaker access (behind 2924EC earpad covers)9. Easy to clean ear cushions10.Rugged ABS headstrap and earcups resist breakage in high-use situations