RC Flysky 2.4G 3CH FS-GR3E GR3E Receiver for FS GT3B GT2 GT3C Transmitter

Wireless frequency: 2.4GHz. Wireless protocol: AFHDS. Antenna type: single antenna (150mm). Color : gray semi-transparent. Size : 37.6 22.3 13mm. ANT lenth : 26mm. Weight : 5g. Online update: No.