You don't say what size helo you'll build but do yourself a favor and if you want a Trex type helo, build a Trex with the matching electronics. It will save you a lot of heartache trying to use instructions and set up designed for a Trex that may not work for the clone and using inferior electronics that may or may not be as good as the Trex bits. As noted above by ATV I've seen a lot of people (I too learned the hard way) try to save a penny and end up spending a dollar.