backup charger cover for your iPhone 4 or 4S +

Backup charger Battery cover Charger power station External Battery for iphone 4 and 4s  back cover charger help you enjoy favorite movies, music, games, phone call and internet surfing but never worry about shortage of battery power. Capacity:1900mAh Colour white Time: Up to 260h  Talk Time: around 5h  Wi-Fi: Up to 8h  Audio Play: Up to 28h  Video Play: around 8h Function Strong, durable engineering material-Protects your phone from bumps & scratching and gives a non-slip coating. Eloquent styling- Compliments the profile. High capacity external battery-Doubles stand-by time of 4. Cut outs for all the features-Use your phone without removing it from the case. Protective IC circuit-Efficiently avoid short-circuits, over-charging, over-discharging and malfunctioning even under conditions.