Versatile, workhorse, NeoTech Plus 1017AV Headphones are perfect for general-purpose classroom use with mobile devices. It delivers high-performance, one-on-one learning, assessment testing and more. Audio playback is calibrated to enhance tonal range of the human voice in language learning, library use and in computer labs. Headphones are compatible with tablets, smartphones, Chromebooks, laptops and desktop PCs/Macs. They are great for BYOD and school-issued devices in classrooms. Padded headband is comfortable for extended wear. Adjustable, ABS head strap fits all head sizes. Set volume at levels recommended for hearing safety by wearing these noise-reducing, circumaural earcups that lower external noise. CaliTuff cord resists chewing, cutting and separation. 6' long cord is long enough to avoid accidental disconnection. It comes in a heavy-gauge, plastic bag with a labeling area to promote classroom hygiene by isolating head lice.