The UL listed portable charger is the perfect promotional giveaway to put in charge during your next campaign! Measuring 3 3/4" long and available in several colors, this useful on-the-go item is a 2200 mAh lithium ion grade-A non-recycled battery and features a USB output and a micro USB input (cord included). It requires your device's charging cord for use. Output: 5 volts/0.8 amp. Make a lasting brand impression by including an imprint (silkscreen or laser engraved) of your company name and logo.