Performance: High efficiency during operation, low noise, low power consumption, and convenient installation and disassembly. Package: The package contains different servo arms to meet your needs and bring you great convenience. Application: Our digital servo is suitable for RC racing helicopter, an excellent airplane replacement part. Material: Made of high quality aluminum alloy material, sturdy and durable, anti corrosion, to ensure durability. Metal Gear: The metal gear can withstand higher loads to ensure the normal operation of the servo. Feature: 1. Material: Made of high quality aluminum alloy material, sturdy and durable, anti corrosion, to ensure durability. 2. Metal Gear: The metal gear can withstand higher loads to ensure the normal operation of the servo. 3. Performance: High efficiency during operation, low noise, low power consumption, and convenient installation and disassembly. 4. Package: The package contains different servo arms to meet your needs and bring you great convenience. 5. Application: Our digital servo is suitable for RC racing helicopter, an excellent airplane replacement part. How to Use: 1.Installtheservototheservomountfirst,withoutinstallingtheservoarmorservoprotection.Onlyfixtheservo.Thenconnecttheservotothereceiver,usuallytheCH1orSTjack.Thethreelinesaredividedinto:bottomline,VCC,signal/PWN. 2.Aftertheservoisfixed,turnontheremotecontrol,andturnontheESCaftersettingit,andthentheservowillstopatafixedposition. 3.Withoutturningofftheremotecontrolandtheservo,installtheservoprotectionorservoarmtotheservooutputgear. Specification: Item Type: Full Metal Digital Servo Shell Material: Aluminum Alloy Color: Black + Red Working Voltage: 4.8-8.4V Working