Specifications:; battery type: lithium-ion; battery capacity: 2600Mah; input: 5V 1a; output: USB 5V 1a; size: 4.51 inch x 0.95 inch x 0.89 inch inches; weight: 0.15Lbs; compatibles: most smartphones, tablets, action cameras, fitness trackers, smart watches, Bluetooth devices, & other USB powered devices.; color: Black.