Avido Cube 2800mAh (Truly Pocket-Sized) Portable Power Bank Charger / External Battery Power Pack for iPhone X, 8, 8 Plus, 7, 6/ 6s and most Smartphones, Tablets and other USB-charged devices - White 2800mAh high density capacity provides your device with an extended charge. Input: DC 5.0V, 1A. Output 5.0V, 1A Small and extremely lightweight! Only 2in x 2in x .75in (easily fits in the palm of your hand) and it weighs only 2.2 ounces Simple charging: The unit automatically powers on when a device is connected and powers off when unplugged. The unit features an On/Off LED light to make charging simple Reliable lithium core ensures quality, supplying you with more than 1,000 charge cycles during the course of its life Package contents: Avido&#8482; 2800mAh External Battery, Micro USB Cable, Manual