FEATURES:

AVCS System: Since the rudder trim changes (caused by wind and other meteorological changes) the front, rear, and other heli attitudes change and are automatically canceled; tail (rudder) operation is easy, making it perfect for 3D flight.
(also known as heading hold gyro)

SMM Gyro Sensor: Use of this newly developed technology virtually eliminates rudder trim changes during flight.

Digital Servo Compatible (DS Mode): DS mode makes it compatible with Futaba digital servos. This maximizes the high-speed response performance of the digital servo.

Included high-speed S9254 digital servo boasts 47 oz-in torque and a speed of .06 seconds @ 60° Remote Gain Function and Mode Switching Function Remote: Gain function allows sensitivity switching from the transmitter and mode switching function allows AVCS/normal gyro mode switching.

Integrated, compact and lightweight design made possible by high
density mounting technology.

Conductive Resin Case: This case improves EMC (Electrostatic and
electromagnetic interference) resistance.

INCLUDES: One GY401 gyro
One S9254 digital servo, available separately FUTM0224
One 0.81" (20.5mm) round servo horn, one 1.8" (45mm) round servo horn
one 1.25" (32mm) 6 point servo horn, one 1.5" (39mm) 4 point horn,
mounting hardware
One mini plastic adjustment screwdriver
Three mounting pads
One instruction sheet