Engineered for iPhone 11 Pro Max, the Smart Battery Case gives you even longer battery life while offering great protection. Inside, a soft microfiber lining helps protect your iPhone. And on the outside, the silky, soft-touch finish of the silicone exterior feels great in your hand. The case features a dedicated camera button that launches the Camera app whether the iPhone is locked or unlocked. A quick press of the button takes a photo and a longer press captures QuickTake video. It works for selfies too. The Smart Battery Case is also compatible with Qi-certified chargers. You can charge your iPhone and battery case simultaneously. When fully charged, the Smart Battery Case delivers up to 50% longer battery life. With the Smart Battery Case on, the intelligent battery status is displayed on the iPhone Lock screen and in Notification Center, so you know exactly how much charge you have left.