Not sure what to buy or need help with your new product? We've got you covered! Call our Circuit City experts at 877-234-8013 for personalized shopping advice and product support. 85 decibels kid safe volume limiter built in Up to 4 hours playtime Adjustable headband and soft ear cushions help your child find the perfect fit Included: 1 Instruction Manual(s) Battery Type: Lithium Ion, Rechargeable Measurements: 2 Height/Inches Weight (lb.): 0.1 Lb Country of Origin: Imported