OVERVIEW: A rechargeable 1350mAh internal battery that provides up to one-half of a phone charge. The convenient, built-in arm eliminates the need to carry around any extra cables that just simply get in the way. The SLIM BOOST is available with a Lightning connector, and it includes a white 1-foot micro USB charging cable for recharging the power bank. KEY FEATURES: Credit card sized power bank Fits in your pocket or wallet Built-in lightning charging arm Rechargeble battery Power indicator