Muze-Black For Sony Xperia Z3 Rechargeable Battery Charger Case 3200mah External Backup Portable Power Bank Charging Case with Built-in Video Kickstand Retail Package 1. Capacity: 3200mah. 2. Compatible Perfect with new Sony Xperia Z3. 3. Works as both an extended battery set and a protection case. 4. External battery charger case for Sony Xperia Z3 Could stand up. 5. Package includes: 1 x Backup Battery.