Receiver Specifications:
◆ Type:4-Channel Full-Range  Receiver
◆ Modulation: DSM2Only
◆ Band:  2.4GHz
◆ Dimensions (LxWx H):29x16x7mm
◆ Weight:3g
◆ Voltage Range:3.6-10v
◆ Antenna Length Main RX:29mm
Key Features
◆  4channels
◆ Preset failsafe system
◆ Compatibility (Spec-trum and J-R DS-M2and DSM-X): DX5E DX6I, DX7, DX8, DSX7 DSX9 DSX11 
Binding 

1.Make sure the transmitter is powered off. 
2.Make sure the transmitter controls are neutral,the throttle is at the lowest position',the throttle trim is centered and the aircraft is immobile. 
3.Insert a bind plug in the receiver bind port 
4.Connect the flight battery 
5.The receiver LED will begin to flash rapidly. 
6.Power on the transmitter while holding the transmitter bind button or switch. 
7.When the receiver binds to the transmitter,the red bind light on the receiver will turn solid .
8.Remove the bind plug from the bind port. The receiver should retain the binding instructions received from the transmitter until another binding is done. 
9.Disconnect the flight battery. 
10.Safely store the bind plug

Package list :
1X4100e  4CH receiver x1
1xBind Plug