Features:
The AFHDS 2A (Automatic Frequency Hopping Digital System Second Generation) developed and petented by FLYSKY is specialy developed for all radio control models. Offering superior protection against interference while maintaining lower power consumption and high reliable receiver senstivity, FLYSKY's AFHDS technology is considered to be one of the leaders in the RC market today.
Bidirectional Communication
Capable of sending and receiving data, each transmitter is capable of receiving data from temperature, altitude and many other types of sensors, servo calibration and i-BUS Support.
Multi-channel Hopping Frequency
This system bandwidth ranges from 2.408GHz to 2.475GHz. This is divided in 135 channels. Each transmitter hops between 16 channels (32 for Japanese and Korean version) in order to reduce interference from other transmitters.
Omni-directional Gain Antenna
The high efficiency Omni-directional high gain antenna cuts down on interference, while using less power and maintaining a strong reliable connection.
Unique ID Recgnition System
Each transmitter and receiver has it's own unique ID. Once the transmitter and receiver have been paired, they will only communicate with each other, preventing other systems accidentally connecting to or interfering with the systems operation.
Low Power Consumption
The system is built using highly sensitive low power consumption components, maintaining high receiver sensitivity, while consuming as little as one tenth the power of a standard FM system, dramatically extending battery life.

X6B i-BUS Specifications:
Brand Name: Flysky
Item: X6B i-BUS Receiver
Channels: 6(PWM), 8(PPM), 18(i-BUS)
Model Type: Multi-Totor
RF Range: 2.408-2.475 GHz
Brand Wigth: 500KHz
Number of bands: 135
RF Power: No more than 20 dBm
RX Sensitivity: -95dBm
2.4GHz protocol: AFHDS 2A
Modulation Type: GFSK
Stick resolution: 1024
Low voltage alarm: Yes
DSC port: PPM/PWM/i-BUS
Antenna Length: 93mm (Dual Antenna)
Power input: 4.0-8.4V
On-line Update: Yes(Wireless)
Range: >300m
Weight: 4.5g
Size: 36*22*7.5mm
i-BUS Port: Yes
Certificate: CE0678, FCC ID: N4ZX6B00

FS-IA6B Specifications:

Item Name: IA6B
Channel: 6
Model type: fixed wing/helicopter/glider
RF receiver sensitivity: -105dBm
Modulation: GFSK
System type: AFHDS2A/AFHDS
Channel resolution: 1024 steps
Bind port: yes
Power port: yes( VCC)
Power: 4V -6.5V DC
Weight: 14.9g
Antenna lenght: 26mm
Size: 47.4*262.2*15 mm
Certificate: CE ,FCC


FS-A8S Specifications:
Brand Name:Flysky
Item Name:FS-A8S Receiver
Channels: PPM 8CH, i-BUS 18CH
Model type: Multi-rotor
Frequency range: 2.408-2.475GHz
b and width: 500KHz
b and number: 135
RX Sensitivity: -92 dBm
2.4GHz system: AFHDS 2A
Modulation type: GFSK
DSC port: PPM/i-BUS/S.BUS
Transfer method: FHSS
Data output: 1.5mm*3 Pin  PPM/i-BUS/S.BUS
Antenna length: 26mm (Not including brass contacts)
Input power supply: 4.0-8.4V
Display method: LED
No ground interference ( Transmitting and receiving 1 m from the ground): >300m
Working current: 40mA
Each channel data: depend on the transmitter
Channel delay: <15mS
Size: 20*14*5.3mm
Weight: 1.2g
Certificate: CE0678, FCCID: N45ZA8S00


Note: Only i6x means the package comes without receiver, only i6x transmitter. This transmitter comes wtih 6 channels, it need to modify by yourself if you wanna it be 10 channel.