Distinguish your company from the rest with the Power Pack D100. In a class of its own, this metal emergency cell phone charger will keep mobile devices charged up anywhere. The 4,000 mAh internal battery has enough life to fully charge smartphones. The 5V/1A and 5V/2A USB outputs will charge at the same rate as most wall chargers. Comes with a standard micro USB input cord. Laser engrave your logo to advertise everywhere your frequent travelers and heavy mobile phone users need to charge up!