The compact body has a significant weight reduction and an improved sense of hold. Adopts the new "FH-E" method of hopping for communication systems. More interference and interference resistant ■Method/2.4GHz FH-E ■CH/3ch■Use/RC general■Receiver/RX-391W ×2 ※Waterproof specifications●Model name compatible LCD ●Anti-lock brake function ●Model name ● Expensive-endpoint adjustment●Servo reverse ●Dual rate ●Trim/Subtrim●Low battery alarm●Model memory function (10 model) ●4 cell Battery specifications: Compatible reception. Machine: RX-391, RX-391W