Talk time: Up to 6.5 hours on 3G network/Up to 10 hours on 2G network.

Specifications

Cell  type: Li-polymer battery.Capacity: 1900mAh.Input:DC 5V. 500mAh.Output :DC 5V. 500mAh.Standby time: Up to 230 hours.Talk time: Up to 6.5 hours on 3G network/Up to 10 hours on 2G network.Internet use: Up to 5.5 hours; Up to 8 hours on Wi-Fi.Audio play: Up to 30 hours.Video play: Up to 8 hours.Color: Blue,Gray,White.Item dimensions: 126*63*16mm.Package weight: 66.5g.

Package Included

1 x 1900mAh Rechargeable Power Charger Battery Case.1 x USB Cable.

Portable 1900mAh External Power Backup Battery Charger Case For IPhone 4 4G 4S