This is the GY401 Gyro with SMM Technology from Futaba
This is a High Performance, Compact and Lightweight (AVCS) Angular Vector Control System gyro developed for model helicopters
Because the sensor and control circuit are integrated, it is simple to install

• 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 cancelled; 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 (see COMMENTS). 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.
  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.
  Conductive Resin Case:This case improves EMC (Electrostatic and electromagnetic interference) resistance
  Integrated, compact and lightweight design made possible by high density mounting technology
  Never opened and the box is 100% new.
• Spec: (GY401 Gyro)
  Length: 27mm
  Width: 27mm
  Height: 20mm
  Weight: 27g
  Voltage- use only with a 4.8V battery. (if you use it with a higher voltage battery it needs to be regulated to 6V)

• packing content
  100% Brand New
  1 x GY401 Gyro IN THE BOX

About shipping

• Delivery time is around 10-25 business days to most countries

• Your satisfaction is our first priority. We appreciate your positive feedback. Our system will leave feedback automatically after you pay it. Please leave us positive feedback upon satisfaction of the item. Please email us before leaving negative and neutral feedback. We will try our best to solve the issue
• Warranty & Return:
  All products have been checked and packaged in good condition before dispatch.
  In case the item is defective, please inform us within 30 days of receipt, we will replace a new one. No Refunds are offered.
  Buyers have to pay for the return cost and we will pay the cost for resend

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