The iT4 is capable of storing 20 models in its internal memory and has the ability to graphically represent all trim, exponential, and dual rate adjustments. The graphical representations are extremely useful in depicting how the car will react to the parameter changes. The switch and trim buttons surrounding the steering wheel are fully programmable allowing the user to program each specific button to do a specific task manually assigned. The steering wheel housing pivots allowing the driver to configure the steering wheel angle for the ultimate comfort. Comfort can be further enhanced by the removable rubber pistol grip. Two sizes of small and large are included in the radio package.

The iT4 features a second-generation automatic frequency hopping digital system transmitter (AFHDS 2) capable of receiving transmission parameter information, such as voltage, temperature, and speed from the receiver. In other words, this radio features full telemetry function with the ability to piggy back multiple sensors. The iT4 comes equipped with voltage, temperature, and speed sensors ready to hook up to the receiver. An additional serial bus receiver is also included for additional servo wiring.

The FS-iT4's large screen display features touch screen technology allowing greater convenience in parameter settings. A stylus is also included to protect the screen from scratches especially when your fingers are caked in grease, grim, and dirt from working on the vehicle.

The FS-iT4 is powered by a single 3.7v 1200mah Lithium Polymer Battery and is charged via a micro USB port on the transmitter.