For more about this helicopter: Walkera FPV 400

FPV 400 Specification:
A Main Rotor Diameter:485mm
B Main Rotor Diameter:485mm
Overall Length:580mm
Motor:2 x 380PF
Battery:11.1V 1500mAh Li-po
Radio:DEVO F4(Included)or DEVO F7(Not Included)
Receiver:RX2459H-D
All-up Weight:720g(battery included)
ESC:FPV400
RYRO:Built-in
Servo:WK-7.6-6A
Camera:DVO4
5.8G Emitter:TX5803 or TX5804

DEVO F4 Features:
1.2.4G Direct Sequence Spread Spectrum (DSSS) technology, boot automatically code assigned ID can also be custom fixed ID code.
2.5.8G real time image transmission, enjoy FPV first perspective fun.
3.USB online upgrade, maintain the latest version of the program always.
4.High-frequency output power adjustable ( minus 5 dBm ~ 20 dBm), more humane, more environmentally friendly.
5.wireless copy function and coaching functions with model data between the two devices.
6.Suitable for 4 Channel Helicopters and airplanes.
7.with the size of the rudder and the exponential function, to control throttle curve in 7:00.
8.Support Telemetry transmission function, significant voltage, temperature, GPS and other information can be monitored back
9.15 model set data can be stored.
10.Joystick with four bearing design, overall appearance design ergonomic easy to grip and more comfortable.

DEVO F4 Specification:
Encoder:4-channel micro computer system
Frequency:2.4GHz DSSS
Output power:≤100mW
Current drain:≤500mA (100mW)
Power supply:7.4V 800mAh or 5#Battery 4×1.5V
Output pulse:1000~2000Ms(1500Ms Neutral)
Image receive:5.8G

Package include:
1 x Walkera FPV 400 Helicopter
1 x Devo F4 transmitter
1 x 5.8G Emitter
1 x DV04 Camera
1 x 11.1V 1500mAAh Li-Po battery for FPV 400
1 x battery Charger
1 x Tool Kit
1 x English User Manual
1 x CD