15000mAh battery capacity can recharge most smartphones up to 5 times Two USB-A ports for charging up to two devices at a time 18 watts with a 5V 3A power output can charge your devices quickly reducing waiting time Built-in safety measures prevents surges and short circuits so that your device remains safe LED indicator light tells you when the power bank is charging Automatic on/off function for user convenience Compact design with a sleek body is highly portable and travel-friendly 1 foot (0.3m) cable is included for connecting the smartphones