TAMO 800mAh Credit Card-Sized Ultra Small Portable Charge Card - Retail Packaging - Black Extremely thin, light-weight, and extra compact design for ease of storage during everyday travel Utilizes A-grade Lithium polymer batteries (charging time approximately 1-2 hours) Input: Micro USB 5V / 1A Output: Micro USB 5V / 1A Capacity: 800mAh Stealth engineered Built-in Micro-USB cable Dimensions: 6.2 x 4.9 x 0.6 inches ; 1.6 ounces