iPhone 6 6S Battery Case MUZE&reg; 4.7 Inch Slim Portable Charger Case External Power Case Backup Battery Case 3500mah Power Bank Case with Pop-out Video Kickstand Retail Packing (Gold/for iphone 6 6S/1pcs) 1. The powerful 3500mAh built-in lithium polymer battery can effectively provide 100% additional battery life to your iPhone 6 (4.7 inch). 2. Easy Access to all Functions, Controls, Speakers and Cameras. 3. Battery life indicators showing 100% 75% 50% 25% charge to ensure you always know where you are with your battery life. 4. It acts both as a protective case and also as an excellent external battery pack. 5. With foldable stand on back function, great and easily for using and viewing your iPhone 6