Hamilton Electronics' SC-7V Stereo/Mono Switching Headphones with Volume Control work with most types of AV equipment because they automatically switch to match the mono or stereo source. Use the headphones with 3.5mm stereo, 3.5mm mono, 1/4 inch stereo and 1/4 inch mono. The blue headphones have soft, padded ear cushions and ear cups that swivel so they are easy to wear. Adjust the volume quickly and easily with the control on the ear cup. Each set of headphones includes an anti-lice bag for maximum classroom cleanliness.