Description With an alpha, you expect a bit of muscle and this 3,000 mah ul 2056 certified power bank doesnt disappoint! Slim, but powerful, alpha is housed in a black or gunmetal aluminum case and you can either laser engrave your logo or print it to boldly match the color of one of the brightly colored accent bands. Either way your message will be front and center and visible through the window of its black tuck-in box.