Flysky FS-i4 AFHDS 2A 2.4GHz 4CH Radio System Transmitter for RC Helicopter Glider with FS-A6 Receiver

Features:
Reliable, interference free 2.4GHz AFHDS 2A signal operation.
4CH operation.
Use only 4 * AA batteries for transmitter.
Quick and extremely stable in performance.
Simple binding procedure.
Transmitter Specfications:
Channels: 4
Model type: fixed-wing/glider/helicopter
RF range: 2.405-2.475GHz
Bandwidth: 500KHz
Band: 142
RF power: less than 20dBm
2.4G system: AFHDS 2A and AFHDS
Code type: GFSK
Sensitivity: 1024
Low voltage warning: less than 4.2V
DSC port: PS2; output: PPM
Charger port: no
ANT length: 26mm * 2(dual antenna)
Power: 6V 1.5AA * 4
Display mode: LED indicator
Size:174 * 89 * 190mm
Weight: 335g
Color: black
Receiver