Check the listing for details. RC-ERA EC135 - Blue : RCE-C187B. Color: Blue, Condition: New, Made in China. Listed at 125.49 USD. The RC ERA C187 EC135 is a Gyro Stabilized, Scale RC Helicopter that offers RTF capability. It features Flybarless technology for efficient power and precision, Altitude Hold for effortless hovering, and Gyro Stabilization for superior control in various flying conditions. An on-board gyro system stabilizes the helicopter, allowing for hands-off hover to help you learn how to properly orient and control an RC helicopter. Independent motors for the main rotor and tail rotor respond quickly to control inputs, making the C187 ideal for flying in confined areas with minimal wind such as indoor arenas or outdoor flying fields. The C187 gyro stabilized helicopter provides an ideal balance of size, price, performance, and value as a trainer helicopter. Whether learning yourself, or giving the gif.