This UL Listed Power Bank allows your logo to shine. This battery backup packs a 4,400 mAh 5V/1A Li-Ion battery which will allow your smartphone to charge at the same rate as a wall charger. The light up function behind the dome will illuminate any logo. Includes a USB to Micro USB connecting cable which can charge the battery backup or be used to charge devices with a Micro USB input like Android smartphones from Samsung, Motorola, HTC, Nokia and others. This product has passed UL Standards.