The GMr-C3, in compliance with the AFHDS 3 (third-generation automatic frequency hopping digital system), is a 3-channel micro receiver, featuring single external antenna and bidirectional transmission.

It is compatible with all Flysky AFHDS 3 transmitters like the Flysky Noble NB4, NB4+, and NB4 Pro+ and it's ideal for micro or mini RC cars.

Features:

• Features a single silicone wire antenna and supports online firmware updates.
• Designed with a tiny footprint ideal for tight installations.
• Includes internal solder pads/support for external gyros (such as the FS-GY01) even though dedicated plug ports are minimized to save space.

Speciifications:

• Product Model: GMr-C3
• PWM Channel: 3
• Wireless Frequency: 2.4GHz ISM
• Wireless Protocol: AFHDS 3
• Channel resolution: 4,096 levels
• Antenna Type: single antenna (Silicone wire antenna) 
• Power: 3.5-9V
• RSSI: Supported
• Data port: PWM 
• Temperature range: -15 ℃ — + 60 ℃ 
• Humidity range: 20% -95% 
• Online Update: Yes
• Dimensions: 19.0 x 12.5 x 7.0 mm
• Weight: 1.3g 
• Certification: CE，SRRC，FCC ID: 2A2UNGMR-C300