Foldable Portable and Adjustable: Keewonda bulk classroom headphones fit a range of head sizes which suitable for Kids Teens Adults Teachers ... Universal Compatibility: Nicely compatible with any devices with 3.5mm aux such as smartphones tablets laptops kindle fires and so on. Comfortable Cushion Pad:This students headphone earmuff use soft leather material it s soft and comfortable. Individual Packaged: Keewonda multipack school headphones packed by a carton box each headphone sealed by individual plastic bag.5 Assorted colors Foldable Headphones with Adjustable Headband: 25 Pack muti color headphones in bulk :Blue Black White Rose Orange each color come with 5 pack total 25 pack headphones with adjust headband suitable for kindergarden primary elementary middle school and teachers adults.