Features: 1.Important Reminder: This smart battery charger case is only compatible for iPhone 12 Pro max. It is recommended to use the original cable to charge the battery charger case. Please ensure that the phone is tightly attached to the bottom of the battery case, and regularly clean any dust or foreign objects on the charging port during use. 2.Fully Compatible For iPhone 12 Pro Max: This battery charger case for iphone 12 Pro Max features an original connector and is compatible with all features of the for iPhone 12 Pro max. Use original cables to charge or synchronize data, or enjoy in car gaming. When placing the phone in a battery case, please use wired audio headphones. 3.Powerful 5500mAh Battery: The built in lithium polymer can increase additional battery life, allowing your for iPhone 12 Pro max to charge anytime, anywhere. It has 50 hours of music playback, 30 hours of talk time, 15 hours of internet usage, and 16 hours of video playback. Don't worry about missing important notifications because your phone battery is dead. 4.Level 4 LED Battery Indicator Light: The battery case for IPhone 12 Pro Max has an LED battery level indicator light, which allows you to accurately know whether it has been charged or the remaining battery level (0?25% ?50% ?75% ?100%). In addition, you can easily open and close the battery compartment using the power switch. 5.Provide Additional Protection for Daily Use: The carefully designed premium materials and lightweight features make the battery case suitable for the pocket. It also provides additional protection for the phone edges to prevent bumps and falls. specification:Item Type: Battery Case for IPhone 12 Pro Max Product Material: Silicone Weight: Approx. 184g / 6.5oz Internal Battery: Lithium Battery 5500mAh Applicable Model: Suitable for iphone 12 Pro Max PackageList: 1 xBatteryCaseforIPhone12ProMax 1 x Manual