Bastens QuadSteer 4 wheel steering DIY kit control module works with either 2Ch or 3Ch transmitters This DIY kit includes everything but the soldering iron and skill. Refer to the images to see what you have to do to put it together. Computer chip is preprogrammed and ready to go. You just solder! works either with standard 2 channel remotes using our innovative 'wheel wiggle' to change modes OR use a simple 3rd channel toggle switch for even more functionality and quicker mode changes. computer automatically detects if 3ch is not present to then enable 'wheel wiggle' Accepts receiver voltage ranging from 4.0V to 13.0V. This computer module is self calibrating and remembers the last setting for convenience on your next power up. no adjusting needed because complex code inside the controller does all the thinking for you. just plug in and play. what is wheel wiggle? using a stock 2Ch remote if you leave the wheel center for 2 seconds then steer left / right / left / right within 4 seconds the mode will switch. this prevents accidental switches during normal driving ... modes: front steer only / four wheel steer / rear steer only / crab walk ... compatible with all classes of competitions if you have a simple two position toggle from a 3rd channel then with a flip of the switch the controller will cycle to the next mode. if you toggle while turning it will freeze either the front or rear wheel turn position giving you control of the other set for advanced steering ... a must see in our youtube 'Bastens Quadsteer' video