Kou-zone 8400mAh Brilliant Ultra-Slim USB (5 v dc 5 v, 1000 mah Output ) super power bank Portable External Battery Charger for iPhone 5 5S 4S, iPod, iPad, Samsung Galaxy S3 S4 Note3, HTC One , Nexus 5, Nokia Lumia 925 1020, LG G2,Bluetooth Speaker, Google Glass [ For Most Smartphones & 5V Tablets] Specifications: Capacity: 8400mAh / 37 Wh Battery Type: 18650 lithium batteries. Input: 5 v, 1000 mah Outputs: 5 v dc - 5.5 v, 1000 mah The LED flashlight function Connector 4pcs