FSY-FGR4B Flysky FGr4B 2.4GHz 4-Channel AFHDS3 Receiver

Specifications:
Input Voltage: 3.5-9V
Frequency: 2.4GHz
Channels: 4Ch
Compatible Transmitters: Flysky Noble NB4+ and NB4+ Pro
Protocol: AFHDS3
Antenna: Dual
Dimensions: 0.67x1.14x0.63in (17x29x16mm)
Weight: 0.23oz (6.4g)
Includes:
(1) FlySky FGr4B 2.4GHz 4-Channel AFHDS3 Receiver