THETA Razor-T1 NFC HV Standard Brushless Tail Servo Black Edition

High voltage, High-Torque, standard size brushless servo.
Ideal tail servo for 550 all the way up to 800 class helicopters

The Theta servos are at the top of their class due to their ability to be fully programmed via an Android NFC enabled smart phone. You can adjust things such as the center point, refresh rate, acceleration, as well as the PID control loop of the servo. You can make it feel however you want it to!