TechOrbits Samsung Galaxy S7 Battery Case, Premium Extended Battery Case Samsung Galaxy S7 4200mAh Capacity Kick Stand/Black TechOrbits 4200 mAh External battery Case for Samsung Galaxy S7 Over 140% Longer Battery Life: 6800mAh capacity provides an extra 65 hours audio, 20 hours 3G talktime, 14 hours video, 13 hours web browsing or 4 hours 3D gaming to your Galaxy S7 Top of the line protective case: This case more than doubles your phone's battery life. Matte exterior provides secure grip and extra protection. Adds a little width and weight to your phone (width: 0.65 inches; weight: 3.8 oz). Li-Polymer Battery - Capacity 4200mAh - Grade A Cells will ensure this is the last battery case you will purchase what you get: 1 X TechOrbits 4200 mAh external battery case for Samsung Galaxy S7 +; guaranteed compatibility and unparalleled customer service.