Urban Junket Power Clutch Coated Canvas Lithium polymer Joey portable charger can recharge your devices for up to 10 days of partial charges or 2 full smart phone charges The Joey portable charger runs cool, is TSA safe and automatically knows how much power to deliver to any device. Most battery chargers can't do this and many run hot. Be careful! Heat is the death of any battery and sometimes a favorite lipstick. Packaging clearly indicates that this clutch has a rechargeable power source inside Charging and compatibility questions are all answered on the package Joey portable charger is interchangeable with UJ handbags and laptop bags