GEPRC DoMain4.2 FPV 4.2" Drone Frame KitThe DoMain 3. 6 4. 2 frame developed by GEPRC for unfettered and aerial photography flight is now officially released. The frame is compatible with DJI O3, VISTA, and GEPRC RAD MINI 1W VTX. The flight is more stable and flexible when DoMain adopts a DC structure design on the drone arm, the need for freestyle flight can also be satisfied. The unique structure design provides a stable operating environment for the electronic system with less shaking.