Broaden your brand's reach with the help of this promotional power bank! This UL certified mobile smartphone charger has a bright indicator LED light and is made of durable ABS and polycarbonate materials. Other features include a Grade A Lithium-ion battery cell with 4000 mAh capacity and Input Micro USB: DC 5V/9000mA (cord included); Output USB: DC 5V/1000mA. Offered in black and white, you can also add a company logo or name with the ColorVIBE or pad print imprinting methods. Take your charging abilities to new levels with this handy promoter!