... Battery capacity: 5,000mAh (theoretically 5,000mAh, actually 4,000mAh) Battery type: Li-polymer battery Input voltage ... Battery capacity: 5,000mAh (theoretically 5,000mAh, actually 4,000mAh)Battery type: Li-polymer batteryInput voltage: 5V DC ... via USB portDimensions: 110 x 70 x 15mm/4.3 x 2.8 x 0.6-inchColor: ... Output Power Bank/Portable External Battery Pack for iPad/iPhone/Nokia/MP3/USB Device