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. 20 hours total playtime keep you listening throughout your busy day Automatic pairing makes set up easy Active noise cancelling lets you hear what you want and block out what you don't Included: 1 Instruction Manual(s) Battery Type: Lithium Ion, Rechargeable Measurements: 2 Height/Inches Weight (lb.): 0.1 Lb Country of Origin: Imported