GEP-CB4 Frame is specially designed for Micro Long Range Flight, Maximum support 4 inch propeller.GEP-CB4 Frame is perfectly designed by GEPRC TEAM.Adopting the newly upgraded design of aerodynamics principle.The Light-weight design,The solid and durable structure,The full 3K carbon plates combine with delicate 3D print parts. Battery mounted above the drone,It can be stably and reliably flying and the Center of gravity extreme balanced,The sense of “Easy To Control “are literally breath-taking.With the New producing GEPRC 6S 3000mAh battery,It can easily achieve 28 minutes flight time and bring an incredible and wonderful experience.The flight time and clarity are incredible!