Features: High-performances flight control: F405 flight control with 55A ESC provides powerful control and stability for the Quadcopter. Double Camera Stack: Support Double camera stack design to achieve video switching function to meet different shooting needs. Powerful processing capability: adopts high performances processor with fast response and stable to operate for the flight control effect. Video switching function: It can realise the intelligent switching of Double cameras, flexibly switching view to enhances the experience. Strong compatibility: supports the connection of various Quadcopter components, easy to build and debugging. Specifications: ItemF405 Video Switcher Model: F405 55A ESC 4-8S Flight Control Size:about 37x37mm/1.46x1.46inch ESC Size: about 42.5x42x5.5mm/1.67x1.65x0.2inch Package: Flight Control with ESC Set/Flight Control / ESC Package Includes: 1PC F405 Video Switcher note: Due to the problemsof lighting effect there will be tolerances in product, please understand. Please allow 0-1cm error due to manual measurement