When you plan to update your Futaba/HITEC/WFLY FM Transmitterto the newest high-tech 2.4GHz system, CF9 is your correct choice.
Compatible with radios include:
FUTABA: 3PM,3PK, 7U, 8U, 8J, 9C , 9Z, and FN series.
HITEC: Optic 6, Eclipse 7.
WFLY: WFT09.
Size:60 X 37 X 21mm (2.36 X 1.46 X 0.83 inch)
Antenna: 2dBi

When you are planning to update your radio into 2.4 G technology,
our Corona CF9 is your best choice .CF9 is compatible with radios including:
FUTABA: 3PM, 3PK, 7U, 8U, 8J, 9C , 9Z, and FN series.
HITEC: Optic 6, Eclipse 7.
WFLY: WFT09.WFT 08
Robbe: C18, C28
Specification For Transmitter Module
Operating Voltage Range : 6.0V-13.0V
Operating Current : 100Ma
Output Power---- 10mW-60mW
Resolution : 10bit
Specification for Receiver
SRS81---- Fast Spread 2.4G Receiver work with Corona RF.Module
Operating Voltage Range --- 4.8V-6V
Operating Current --- 30Ma
Specified Range --- 1.5km
Resolutiong ---10 bit
Latency ---- 22ms
Sensitivity -- -100dbm
Channel --- 2CH , 4CH, 6CH, 8CH

we also sell the 2.4 g separate receivers as many customers need more 2.4 g receivers .Our 2.4 g receiver can work with both Corona 2.4 G Futaba mdoule and Corona 2.4 G JR mdoule.