Flip 24 offers a battery boost for those long flights on the road and more. Built-in 6700mAh battery offers about two recharges. No on/off buttons simply plug in cable to charge. Easy-to-read battery indicator. Built-in flip out USB tip. Ideal for smartphones POV cameras headlights and more. USB port output: 5V up to 2.1A. Dimensions: 3.7" x 1.63" x 0.83".