This is the 3-Channel Futaba 3PRKA 2.4GHz FHSS Radio System                                     with the R203GF Receiver.                                                                                                             FEATURES: Ideal upgrade for radios found in RTR vehicles                                       Throttle and steering trim and reverse                                               Steering dual rate dial                                                              Throttle end point adjustment                                                        Channel three switch                                                                 Throttle fail safe                                                                   One year limited warranty through Hobby Services beginning at date of purchase                                                                                                                                         INCLUDES: Futaba 3PRKA 2.4GHz FHSS Transmitter, R203GF Receiver, Instruction Manual and On/Off Switch                                                                                                                            REQUIRES: Servos of modeler's choice Four AA batteries for transmitter                                                                                                                     SPECS:      Transmitter:                                                                        Transmitting Frequency: 2.4GHz band                                                   Power Requirement: Four AA cells                                                      Current Drain: 100mA or less                                                                                                                                        Receiver;                                                                         Dimensions: 1.54 x 1.02 x 0.39" (39 x 26 x 10mm)                                    Weight: 0.28oz (8g)                                                                 Operating Voltage: 4.8 - 7.4V (shared with servo)                                   Battery Fail Safe Voltage: 3.8V*                                                    Current Drain: 30mA at no signal                                                    *Battery fail safe voltage is set for 4-cell NiCd/NiMH battery                       Battery F/S does not work properly when other type of battery is used                                                                                 COMMENTS: 2.4GHz FHSS is not compatible with FASST systems. Normal mode frame rate is (FHSS/S-FHSS) 13.63ms and accepts any type of servos or peripherals. High-Speed mode (in 4PL tx only), with an output of 6.8ms accepts digital servos including the BLS series and most peripheral         equipment such as brushless ESCs