For more about this rc transmitter: FlySky FS-GT2

Description:
It’s FS-GT2 2.4G 2CH transmitter with receiver for rc car and rc boat.
Channels: 2 Channels
Model Type: Car/Boat
RF Power: Less than 20dbm
Modulation: GFSK
Code Type: Digital
Sensitivity: 1024
Power: 12V DC (or 8x AA batteries)
Weight: 328g
ANT Length: 26mm
Size: 159x99x315mm
Color: Black + Orange

Receiver:
Channels: 3 channels
Model Type: Car/Boat
Frequency Band: 2.4G
Modulation: GFSK
Sensitivity:1024
RF.Receiver Sensitivity: -100dbm
Power: 4.5-6vdc
Weight: 5g
ANT Lenth: 26mm
Size: 37.6×22.3x13mm
Color: Black

Package Included:
1 x Transmitter (FS-CT2)
1 x Receiver (FS-GT3C)
1 x User Manual