iWalk 2400 mAh Chameleon Immortal Power Case for iPhone 6 [Apple MFi Certified] (White) 2400mAh capacity Li-Polymer battery with slim design, providing up to 100% extra power for the iPhone 6 Thinner: The perfect combination of function and mobility, at only 0.5 inches. Easier: Use with virtually any headphone jack, even L- shaped plugs - no need to remove power case. Stronger: Air cushion to protect iPhone 6 against impacts. Anti Slip with comfortable and rubberized grips. Pass-Through Technology: Charge iPhone while inside power case. Simultaneous charging allows for quicker charging of both.