Features:

• 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.
• Bidirectional Communication : Capable of sending and receiving data, temperature,altitude and many other types of sensors,servo calibration and i-BUS Support.
• Multi-channel Hopping Frequency : frequency ranges from 2.4055GHz to 2.475GHz. This is divided in 140 channels. Each transmitter hops between 16 channels (32 for Japanese and Korean versions) 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 Recognition System : Each transmitter and receiver has its own unique ID. Once the transmitter and receiver have been binded,they can only recognise each other, preventing other systems accidentally connecting or interfering.

Specifications:
Remote Distance:1000M
Band: 140
Channels: 10
Code type: GFSK
Sensitivity: 4096
Model type: Quadcopter
RF Range: 2.4055-2.475GHz
Bandwidth: 500 KHz
RF power: Less then 20dBm
2.4GHz system: AFHDS 2A
DSC port: Micro USB , PPM
Power input: 4.2V-6.0V
Low voltage alarm: Yes (Lower than 4.2V)
Antenna length: 26mm*2
Weight: 900g
FS-i6S Transmitter Size: 179mmx81mmx161mm
FS-iA6B Receiver Size: 47*26.2*15mm

Inside the Package:
1 x FS-i6S Transmitter
1 x FS-iA6B Receiver
1 x User Manual