3200mAh External Battery Case For Sony Xperia Z3 Backup Power USB Charger Cover With Kick Stand -Black External Power Battery Charger Case For Sony Xperia Z3 Only 3200mAH Rechargeable Battery Helps you in emergency while phone runs out of juice Built in Kickstand free your hands while media play; convenient & Easy to install LED Indicators to keep you remind of the battery level status Works as protective case as well; Black & White for your option