Add this UL Listed (UL File #E485248, Model #AST-MP473XXX) 2-in-1 Zhuse power bank with card holder to your advertising campaign to gain extra attention! The 2500 mAh lithium ion, grade A, non-recycled battery features a stainless steel and polyurethane case with a magnetic closure. A red LED indicator light shines when charging and it has a USB output and micro USB input (cord included). This device will charge most phones, mp3 players and more using the charging cord of the phone or device to connect to the battery. Output: 5 Volts/1.5 Amp.