Designed with busy classrooms in mind, the lab pack features 24 HA7 SchoolMate stereo headphones. The HA7 SchoolMate headphone is specially-designed to be more durable and reliable than ever! Featuring high-quality sound, soft leatherette cushions, adjustable headband and Dura-Cord - the chew, kink and knot-resistant, PVC-jacketed, braided cord - it's the ideal companion to the growing classroom technology.