The Aurora power bank is perfect for recharging your USB powered devices when you are running low on power! Single USB port design with 1A power output this power bank is great for you next ¡°powerful¡± promotion. The compact design makes it perfect for use in the office or traveling while on the go! Large flat imprint area is great for silkscreen imprint and full color imprint logos. Additional feature include Indicate LED can show the power level in the power bank.