Flysky FGr4S Receiver for Noble NB4 Radio System.

Specification:

• PWM channel: 4
• Wireless frequency: 2.4GHz
• Wireless protocol: AFHDS 3
• Range:> 200m (ground)
• Antenna type: Built-in single antenna
• Power: 3.5-8.4V
• RSSI: Supported
• Data port: PWM / PPM / i.bus / s.bus
• Temperature range: -10 ℃ — + 60 ℃
• Humidity range: 20% -95%
• Online Update: Yes
• Dimensions: 25.5 * 22 * 17.3 mm
• Weight: 5.1g
• Certification: CE, MIC, RCM, FCC ID: N4ZFGRS400