GEPRC Sparrow V2 MX3 139mm FPV Racing RC Drone w/ F4 20A BLHeli_S 48CH Runcam Micro Swift BNF PNP GEPRC Sparrow V2 MX3 Racing Drone Features Tested the best speed 170km/h+. Using Runcam micro swift camera, make sure clarity. The GEPRC flying team carefully calibrations PID, Binding receiver can fly. Power System using GR1408 3750kv […]