Polaris 3100mAh iphone 6 4.7 Inch Battery Charger Case - Ultra Slim Unifying Curve Design Perfectly Fit Iphone 6 4.7 inches - MFI Certified Lightning Output & Micro USB Input Supports for Incased Data Sync - No Speaker/mic/signal/ Reduction - 1 Year Hassle Free Warranty (Space Gray with Smoke & Clear Bumper)