[ Built-in Cable] - No need to carry a separate charging cable for iPhone 15 series and USB-C Port series. (Not for iPhone 14 Series and Older Series) [Ultra Slim Design] - Slim Size only 3.9*2.8*0.2 inch, weighing only 3.4 oz. It's easily fit into your crossbody bag, pocket even wallet. Not dragging your pants down [Perfect for EDC] - Ultra Lightweight. Perfect for Every Day Carry, for trip, amusement park or concert. Travel essential- Allowed on airplane carry-on [3500mAh Capacity] - Small Size with 3500mAh battery capacity for emergency use, It charges your phone about 0.7 times. 4 LED indictor lights display the battery remaining capacity [Product Warranty] - Intelligent Control Circuit which protects your devices from over-charging, over-current, over-voltage, short circuit. We offer 1 Year Warranty for any problem about the charger