Impress your clients with this dynamic promotional opportunity when you offer them this power bank as a gift! The 2,200 mAh metal power bank from Elf features an LED charging status indicator and a single USB port supplying a DC 5V/1A output current with a USB/micro-USB charging cable and a metal wire fastener (assembly required) with a screw closure included. Customize and add an imprint of your company name or logo before your next promotional event for brand exposure and recognition. Your campaign wields a powerful promotional punch with the Elf power bank! Note: Spectech-Power products have a one-year limited warranty on electronic parts from date of purchase.