2 Versions optional, Build-in Compass and No Compass, Please choose the one you want. If you want the version of Bend Pin, Please search our store.
If you want the Shock Absorber, Please search our store and purchase separately, Thanks
APM is an open source flight control, can you play APM well depend on individual ability. Player must have ability of basic understanding of monolithic integrated circuit, c-language, knowledge of electrical,mechanical, and also needs a certain degree of mental capacity, financialand material resources, energy support.If you're not ready, then We recommend that you prepare some introductory information first.