RC ERA A61 Optical-Flow RC Helicopter, Altitude Hold, 2.4GHz, 1–3 Batteries Direct Fit it ensures smooth lift and

it ensures smooth lift and eliminates the wobbling that can lead to gyro failure

and rich sound & light effects

Material: High-quality EPP foam for impact resistance

Lead length: Extended for convenient routing(Exact torque/speed may vary slightly by batch

Calibrate the gyro on a level surface before first flight

RC ERA A61 Optical-Flow RC Helicopter, Altitude Hold, 2.4GHz, 1–3 Batteries Direct Fit it ensures smooth lift andRC ERA A61 Optical Flow RC Helicopter Altitude Hold, 2. 4GHz Master stable, beginner friendly helicopter flight with the A61. Optical flow positioning and barometric altitude hold keep the heli locked in place while a 6 axis gyro and flybarless head deliver smooth, precise control indoors and out. Product Reivew Key Features Optical Flow Positioning + Altitude Hold for rock steady, hands off hovering 6 axis gyro and flybarless (aileron less)