Features:brand new and high qualityScope of application: 1/10 scale, 540 or 550 brush motor type, such as 1/10 electric room/electric motorcycle/climbing/foot/short card.F/B/R: forward/brake/reverse, generally use this mode.F/B: Forward/brake, this is race mode, no reverse function.F/R: Forward/reverse, this is climb mode, only forward and backward, throttle trigger in the middle position is automatic brake (drag brake).Voltage input range: 2 to 3S lithium (with lithium for protection, adjust by jumping pin) or 5 to 9cell ni-mh.Forward 60A, astern 30A.Package Includes:1x Electronic Speed ControllerSpecifications:Material:ABSSize:Approx.3.6x3.2cm/1.42x1.26inNet Weight:39gnote:Please allow 1mm errors due to manual measurement.Due to the difference between different monitors, the picture may not reflect the actual color of the item.