Clip-on stereo speaker for iPad: Full stereo sound amplifies your iPad listening experience anywhere you go Rubberized clip: Speaker attaches easily and securely to your iPad or other tablet Quick connection: Simply plug the 3.5 mm cable into your tablet's headphone jack and start listening Easy USB charging for mobile music marathons (Actual battery life will vary with use,settings and environmental conditions. Compact travel size: Fits easily inside the included travel case or your laptop bag Eight-hour rechargeable battery: Easy USB charging for mobile music marathons Rechargeable batteries have a limited number of charge cycles.) Actual battery life will vary with use, settings and environmental conditions.