Features: School headphones with microphones are sturdy and practical, becoming more and more important in today's technology enhanced classrooms, which can help greatly enhance concentration, learning and standardized testing experience. Set of 30 Classroom headphones are suitable for various learning environments such as many classrooms, libraries, computer labs, businesses, museums, art galleries, schools and universities providing services for media players, apps, laptops, tablets, listening consoles, computers, offices and more. Specifications: Material: ABS, PVC Color: rose gold Size: as shown in pictures Package includes: 30 x Classroom headphones in bulk Notes: Manual measurement, please allow slight errors on size. Please carefully check the size before ordering. The color may exist a slight difference due to different screen displays.