Turnigy 3 Channel Servo Speed Regulator. A fully adjustable 3 channel-out Servo Regulator which can be used on any receiver channel and will increase the servo travel time and duration. Great for scale model retracts flaps and canopies where scale detail and flight characteristics are important. No more ((boing!)) cartoon like landing gear action. Weight: 3g Input: 1 servo Channel. Output: 3 Channels. Options: Travel Speed & Travel Time in both directions.