1 set (4pcs) Specifications : Test Item KV3800 Weight Include Cable 9.34g Motor Dimensions dia17.9*16.6mm Internal Resistance 195mOhm Lead 24#AWG 150mm Configuration 9N12P Shaft Diameter 1.5mm Rate Voltoge(Lipo) 3.4S Idle Current(10V) 0.5A Peak Current(60s) 19A Max. Power(60s) 304W Include 4pcs T-Motor F1404 3800KV Brushless Motor