?XXD A2212 1000KV Brushless Motor 30A ESC Motor Speed Controller Combo Set for RC Fixed Wing Plane Helicopter ? ?ESC Features: 1.Safe power function:regardless of the throttle stick in any position the motor will not start immediately.2.Throttle Calibration function:Adapt to different remote throttle travel difference, improve throttle response linearity, with a smooth, delicate feel and excellent speed linear speed.3.Low Voltage Protection Mode ,Low-voltage protection threshold.30A Brushless speed controller ESC MultiCopter Quad-rotor X-copterSpecifications:Compatible with: 400-450 helicopters / Aircraft or Quad-Rotor Multi RC Helicopter-Output: Continuous 30A, Burst 40A up to 10 Secs.-Input Voltage: 2-3cells lithium battery or 5-9 cells NiCd/NIMh battery.-BEC: 2A / 5V (Linear mode).-Max Speed: 210,000rpm for 2 Poles BLM, 70,000rpm for 6 poles BLM, 35,000rpm for 12 poles BLM.(BLM: BrushLess Motor)With T plug and 3.5mm banana connectorsNote: This ESC is not able to flash the firmware.