Battery type: li-ion battery capacity: 11000 mah product size:21*78*151mm input voltage:5v output current:5v 1a(max)2.1a(max) dual usb output 4 led indicators with 1 light excellent power switch management with electronic circuit layout safety protection against over-charge, over-current, over-voltage and short-circuit auto recognition for charging and discharging accessories: 30 cm micro usb cable.