Features -Model no. M20 -20000mah real capacity -Digital display with high accuracy -4 USB Output Ports -Led flash light -On/off switch -Fast charging - Use for smart phone, digital camera, GPS, MP3, MP4, tablet, digital device etc - High Quality original battery, safe and... Features -Model no. M20 -20000mah real capacity -Digital display with high accuracy -4 USB Output Ports -Led flash light -On/off switch -Fast charging - Use for smart phone, digital camera, GPS, MP3, MP4, tablet, digital device etc - High Quality original battery, safe and efficient, support quick charge and discharge, cycle charging Battery- lithium polymer Battery life >500cycles Input 5v/2amp Warranty Period : One Year