The 6-channel DX6i is ideal for sport modelers who want the power of a programmable transmitter but don't want to pay for a lot of extra features they'll never use. It includes software for both airplanes and helicopters as well as enough memory to store settings for up to 10 different models. The 10-model memory is especially useful if you fly mostly Bind-N-Fly aircraft. Programming the DX6i is about as intuitive as it gets. The combination of its Simple Scroll?interface, easy-to-read LCD screen and simplified menu navigation will immediately put first-time programmers at ease. Many programming functions like throttle curves and expo are graphically depicted to give you a clearer picture of the changes you're making. This is definitely a must for hobbyists all over.