Support Sync & Audio & Car Play This battery case only work with iPhone 13 Pro Max (6.7"), not work with iPhone 13 pro (6.1") or other model. Using an original or certificated lightning cable with SlaBao charger case to sync/transfer data or using Car Play function. Works with Lightning headphone, AirPods or wireless earphone. Extra Power & Portable Packed with UL-Tested Battery, SlaBao 6800mAh battery case boosts your phone's charge by 1.5x under overcharge and short circuit protection. The slim, lightweight design makes the battery case super handy on the go, saves you from having to fumble around your purse looking for messy cables and charging blocks etc. Perfect for your everyday carry and emergency use. Faster Recharge & Charge Simultaneously Fast juice up your battery charger case in 3.5 hours or less, greatly shortening its recharging time. You can simultaneously charge your phone and battery charger case while plugged in(Phone takes precedence over the case). Kickstand & LED Indicators A short press on power button lets you charge your iPhone whenever you needs it, while the LED indicators show you how many power is left. The foldable kickstand allows you to prop your phone up while charging. Stream your favorite shows, Facetime your besties, or take charming selfies, all hands free.