FlySky FGr4B 2.4GHz 4-Channel AFHDS3 Receiver

The FlySky FGr4B AFHDS3 Receiver is a compact, lightweight 4-channel receiver designed for reliable performance in surface RC applications. Built on FlySky’s advanced AFHDS3 protocol, it delivers stable, interference-resistant signal transmission with fast response times.

Its small footprint and wide input voltage range make it easy to integrate into a variety of RC cars, boats, and other models. Whether you're upgrading or building a new setup, the FGr4B provides dependable control and simple operation.

Performance & Reliability

• AFHDS3 protocol for stable, interference-free communication
• Dual antenna design for improved signal reception
• Fail-safe support for predictable behavior during signal loss

Compact & Versatile

• Lightweight, compact design fits tight installations
• Wide input voltage range (3.5–9V) for flexible power options
• Ideal for cars, boats, and other surface RC models

Ease of Use

• Simple bind button for quick setup
• Seamless compatibility with FlySky AFHDS3 transmitters

Includes

• FlySky FGr4B 2.4GHz 4-Channel AFHDS3 Receiver

Specifications

• Protocol: AFHDS3
• Frequency: 2.4GHz
• Channels: 4
• Input Voltage: 3.5–9V
• Antenna: Dual
• Dimensions: 17 × 29 × 16mm
• Weight: 6.4g
• Compatible Transmitters: FlySky Noble NB4+, NB4+ Pro