Avido Ultra-Slim 8000mAh Power Bank Charger with LED Light Dual USB 2.1A & 1A Output Portable External Thin Battery Power Pack for iPhone, iPad, Samsung, and Tablets - (Retail Packaging) Black 8000mAh capacity and dual USB output provides your devices with an extended charge. Output 5.0V 2.1A & 5.0V 1.0A, Input: DC 5.0V, 1A. Ultra Slim (.39 inches) 8000mah Power Bank! Only 6in x 2.9in x .39in and it weighs only 8.4 ounces. Power LED's on the device keep you informed about the current battery level. This includes 100%, 75%, 50%, and 25% Simple charging: Just plug in your device, hit the "On" button, and your device begins charging. To turn off the power bank, simply disconnect the USB cable or devices, and the unit automatically powers down Package contents: Avido&#8482; 8000mAh Dual USB Output External Battery, Micro USB Cable, Manual