Power Cage Features: Power for iPad, increase the battery life of iPad, and meet the demand of long time shooting and monitoring. High strength aviation grade aluminum alloy protects iPad from accidental damage from high fall, and accidental bending under heavy weight. 1/4-20″ screw interface makes it easy to connect the iPad to other devices, such as light holders, tripods, cameras and etc. Size adjustable, compatible with 10-11inch iPad Battery self-locking design, prevent the battery from slipping loose accidentally. Built-in charging protection function to provides safe charging service for the device. Specifications: Dimension Size Adjustable, Length(250mm-260mm); Width:170mm-180mm Net Weight: 350g Thickness: 26.5mm Compatibility iPad(7th & 8th generation), iPad Air(3rd & 4th generation),iPad Pro 10.5inch, iPad Pro 11inch(1st & 2nd generation) Material Aviation Grade Aluminum Alloy Processing Technology CNC Integrated Cutting, Anodic Oxidation Treatment Packing Power Cage*1+USB-C Charge Cable*1+Lightning Charge Cable*1+2mm L Wrench*1 M2.5*5 Screw*4 Battery Support NP-F 550/750/970 Battery USB-A Output DC 5V/3A Interfaces 1/4-20″Screw ; USB-A