Features: Useful products: Our children headphones bulk come in 5 colors, 150 pieces in total, sufficient quantity, rich colors, and compatible with most devices with 3.5mm jack. The headphones for school can provide you with the ideal solution for schools, classrooms, libraries. A heartwarming gift: You can get these school wired adjustable headphones as a back to school gift for your kids. The bright colors will easily attract your kid's attention and make kids love them. These classroom headphones bulk can help children with their daily online learning, testing, classroom listening, etc., and can also help teachers get their classes on the learning track immediately. You can also share these students headphones bulk with family or friend around you. Specifications: Material: aBS, PVC, sponge Color: red, orange, yellow, green and blue Size: 3.94 feet cord length, 3.5mm L type plug Package includes: 150 x Child on ear bulk headphones Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.