RC ERA C129 V2 4CH RC Helicopter with Altitude Hold, 6-Axis Gyro & 3D FlipRC ERA C129 V2 4CH RC Helicopter with Altitude Hold & 3D Flip The RC ERA C129 V2 is a compact and stable 4 channel RC helicopter designed for smooth, easy flying. Featuring altitude hold, 6 axis gyro stabilization, and a unique one key 3D flip mode, its perfect for both beginners and intermediate pilots. Its coreless motor system offers efficient power with up to 15 minutes of flight time per battery. Key Features 4CH Flight Control Fly up down,