NOSTON iPhone 6 6s Battery Case Ultra Slim 3500mAh Extended120% Battery Case for iPhone 6 6s (4.7 inch) (Black) 120% Longer Battery Life: 3500mAh capacity provides an extra 60 hours audio, 17 hours 3G talktime, 13 hours video, 12 hours web browsing or 3 hours 3D gaming to your iPhone 6. Incredibly Slim: This case more than doubles your iPhone's battery life without doubling its size (adds only 0.23in & 2.9oz). Deluxe matte exterior provides secure grip and protection. Complete charge and sync compatibility with the iPhone 6. Transfer data or charge phone using the included Micro USB cable (no need to remove battery case). Ultra Slim Battery Case for iPhone 6, Micro USB cable, audio jack extender form fitting,fully protective ultra-resistant case and battery. Check power status at a glance with an integrated 4 light LED status indicator.