iflight protek r25 hd 113mm wheelbase drone f4 20a esc 4s fpv racing elrs caddx vista polar nano Receiver:ELRS 2.4GHz Option2: Walksnail avatar HD Mini Option2: Walksnail avatar HD Mini 1S lite kit x1 UART2 for Receiver Bearing: 5*2*2 Max Continuous Power(W): 174