Power up your low-battery devices on-the-go with this 2200mAh Power Bank with Key Chain! A li-ion battery with an attached keychain ring that allows you to have power wherever you need! With a key chain, you can simply attach this CE and FCC certified device on your keys, purses, backpacks or luggage for a portable charge. Use our vibrant full color imprinting process to display your logo, brand name or message. Input: DC 5V/5A; Output: DC 5V/1A.