KUNER iPhone 6S Battery Case with 64GB storage - iPhone Portable Charger iPhone 6 6S Charging Case (BLACK) - 2400mAh Portable Charger Battery Pack External Rechargeable POWER BANK SUPER SLIM ORIGINAL CONNECTOR inside with 64GB storge Two chips to manage power, saving energy and stable.User will get extra.8.8 hr of 3G voice communication,6.8 hr of Wi-Fi webpage browse. ,6.6 hr of 4G webpage browse,7.2 hr of HD video high-level original DESAY lithium polymer battery <span class="a-text-bold">Thinner</span>- 0.5 inch with Phone <span class="a-text-bold">Light</span>- Add only 24 oz <span class="a-text-bold">2400mAh Battery</span>- Charging Iphone for 0% to 80% <span class="a-text-bold">Storage Extended</span>- Build-In 64GB Storage(The Storage install APP unavaiable, StorageMusic,Photo,Video,File like U-DISK) <span class="a-text-bold">Protective</span>- Portect Iphone With Lightning Port - Charging Without Unplug the Case Data Transfer