QWinOut&nbsp;APM 2.8 Multicopter Flight Controller Board with Case Compass & Extension Cable for FPV RC Drone Multirotor DIY Quadcopter with Protective CaseBut No Shock Absorber! Package Included: 1* Apm2.8 Flight Controller Build-in Compass with Protective Case 5* 10cm Extension Lead Wire Cable Male To Male 1* 6m GPS with Compass l5883 25cm Cable APM is An Open Source Flight Control, Can You Play APM Well Depend On Individual Ability. Player MustHave AbilityOfBasic Understanding Of Monolithic Integrated Circuit, c-Language, Knowledge of Electrical,Mechanical, and Also Needs a Certain Degree Of Mental Capacity, Financial and Material Resources, Energy Support. Includes 3-axis Gyro, Accelerometer and Magnetometer, Along with a High-performance Barometer