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4GRS-R304SB 4 CHANNEL 2.4Ghz | 05003095-3


Product Overview

"The 4GRS is an AWESOME radio! The system is very easy to use. The dial – properly placed above the throttle – clicks like a needle valve on an engine, which is a huge plus. The 4GRS also supports FHSS, S-FHSS and T-FHSS protocols, providing boaters with the reliability and security they can trust. The 4GRS never lets go of your boat, even if in long-range or upside-down conditions!"

Everyone – from hard-core crawlers and scalers to competition boaters and racers – who demands the most from their radios will find that the 2-stick 4GRS meets and exceeds every requirement. Telemetry functions relay critical information to a graphic LCD screen. Extreme off-roaders will appreciate the dual ESC mixing for locking diffs, four-wheel steering and independent brake mixing. And the jog dial/button layout makes navigating menus quick and easy.


  • 2.4GHz Telemetry (T-FHSS) plus S-FHSS.
  • Receiver Voltage.
  • External Voltage, Temperature and RPM Display with the optional sensor.
  • S.Bus2.
  • 4WS Mixing.
  • Dual ESC Mixing.
  • Digital Trims.
  • Front/Rear independent Brake Mixing.
  • 40 Model Memory with 10 Character Model Naming.
  • Anti-Skid Brake System.
  • Graphic LCD with backlight and contrast.
  • Idle-Up.



  • Throttle Speed, Cut, Acceleration, EXP and Neutral selection (5:5/7:3).
  • Steering Speed and EXP.
  • Dual Rate.
  • EPA (End Point Adjustment).
  • Programmable Mixing.
  • Function Select dial/switch.
  • Fail Safe on all channels.
  • Timer (Up/Down/Lap).
  • Data transfer.
  • Throttle and Steering stick tension and angle adjustments.
  • Throttle Stroke adjustment.
  • Ball Bearing throttle and steering sticks.


  • Dimensions: 1.38 x 0.9 x 0.33 in (35.1 x 23 x 8.5 mm), 
  • Weight: 0.23 oz (6.6 g), 
  • Power Requirement: 3.5-8.4V (Useable) 
  • Requirements: 4 “AA” batteries
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