85dB WHO-Compliant Volume Limiter: The integrated volume limiter maintains audio under 85dB in line with WHO guidelines to protect students hearing. Constructed with non-toxic materials and certified CPC & CPSIA compliant, making it a dependable choice for classroom use SharePort Technology-One Jack, Multiple Listeners: The built-in shared audio port lets up to three students listen from a single device, supporting small-group learning without extra splitters or adapters. One jack, multiple listeners Personalization Stickers for Easy Classroom Management: Includes 50+ colorful bonus stickers so every student can personalize their headphones. This helps teachers quickly identify ownership, reduce mix-ups, and encourage student engagement Quality & Durability for School Environments: A reinforced nylon-braided cable withstands heavy handling, while the flexible headband bends and returns to its original shape. Plug and cable joints are cycle-tested for 8,000 insertions and en