This is the Futaba 3-Channel 3PMX Computer Radio with the 2.4GHz FASST System. Transmitter and R603FF receiver only, servos not included. The 3PMX is also capable of using the R603FS receiver to give modelers special Dual Antenna Diversity (DAD). **The 3PMX adds three new features; Four Wheel Steering Mixing,** **Digital Trim Step and Adjuster for Crawlers, Monster Trucks** **and any four wheel drive vehicle. These features allow drivers** **to apply mixing between steering, throttle and channel 3.** FEATURES: FASST (Futaba Advanced Spread Spectrum Technology) sends twice as much information to the receiver at eight times the resolution of standard systems for unsurpassed control and smooth servo travel 2.4GHz circuitry is wired directly into transmitter eliminating separate plug-in modules "Auto Detect" instantly determines whether HRS or PPM mode is active in the receiver (R603FS only) Special ID code prevents signal interruption by rejecting unwanted signals Brake mixing for large cars Anti-skid braking system (ABS) Throttle Acceleration (ACC) minimizes time lag before clutch and brakes are connected in gasoline engine cars Steering speed adjusts steering servo operating speed Racing timer Function select lever function In addition to great performance in R/C car and truck applications, this system is also ideally suited to the rigors of boat racing 10 Model Memory One year limited warranty through manufacturer INCLUDES: 2.4GHz FASST Futaba 3-Channel 3PMX transmitter 2.4GHz FASST Futaba R603FF 3-Channel Receiver (FUTL7631) ON/OFF switch harness Instruction manual REQUIRES: AA Batteries: Eight for transmitter Servos of modeler"s choice SPECS: Transmitter; Current Drain: 250mA or less Transmitting Antenna: 2.4GHz Receiver; Reception Antenna: External Power Requirement: 6V NiCd battery Size: 1.5 x 1 x 0.55" (39 x 26 x 14mm) Weight 0.45oz (12.8g) jxs 01/18/07 ir/jxs