Futaba 3PV 2.4GHz 3Ch T/S/FHSS Radio System w/R304SB 4ch S.Bus2 Telemetry RX

FHSS/S-FHSS/T-FHSS protocols
Large, easy to read programming screen
Four wheel steering and brake mixing
Model data copy
Anti-lock brake system (ABS) function
R304SB telemetry receiver
Link Mode
DT3 selection
SW1
Throttle fail safe
Steering and throttle trim
Channel 4 trim
Sub trim
Steering dual rate adjustment
Steering and throttle end point adjustment
Channel 3 and 4 end point adjustment, and servo reversing
Steering and throttle exponential
Auto power off after ten minutes

Futaba 3PV 3-CH Transmitter, 4-CH R304SB T-FHSS Telemetry Receiver Instruction Manual

AA Batteries: Four for transmitter (may also be powered by the Futaba HT5F1800B 6V NiMH pack FUTM1482, or the Hobbico LiFe 6.6V 1900mAh pack, HCAM6521

Transmitter;
Transmitting Frequency: 2.4GHz band
Power Requirement: Four AA cells
Current Drain: 100mA or less
Transmission Antenna: Dipole (built in)
Communication Method: Two way T-FHSS,one way S-FHSS, FHSS operating system
R304SB Receiver; FUTL7680​
Power Requirement: 4.8 - 7.4V battery (dry cells cannot be used)
Receiving Frequency: 2.4GHz
System: T-FHSS (auto detection) with SBUS2 port
Dimensions: 1.38 x 0.91 x 0.33" (35.1 x 23.2 x 8.5mm)
Weight: 0.23oz (6.6g)
Antenna Length: 7.5" (190.5mm)