Most: Elegant design (lacquered white with quilted mind on top of the hull, a little Chanel style! Yes! - Has an integrated LED flashlight that is pretty powerful (up to 30 hours of light) - Double USB (can charge two smartphones at the same time !!!) Ideal for travel, prolonged ride on the train etc ... -Large Load capacity (allows fully charge an iPhone 3,4et, 2 to 3 times! - Super handy when forgot his chargers - Compatible with smartphones, iPad, iPad mini, digital camera, tablet ... - Supplied with 3 different charging cables -Cons: Does not have an electrical outlet, then the device would be really designed for all situations. - Manual in French, not always well translated, which does not specify the number of hours of charging, but just the number of times you can recharge various IT products, or phones (somewhat approximate) PS very convenient to recharge your smartphone to "hard". I put the case for example in the entrance and going I put in charge without being required to seek the charger initial.J'ajoute a super star because the use.