4x Xxd Hw30a 30a Brushless Motor Esc For Airplane Quadcopter

4X XXD HW30A 30A Brushless Motor ESC For Airplane Quadcopter Specification: Power input: 5.6V - 16.8V (2-3 cells Li-Poly, OR 5-12 cells Ni-MH Ni-MH / Ni-Cd battery) BEC: 2A Constant current: 30A (Max 40A less than 10 seconds) Weight: 25g Dimensions: 45 x 24 x 11mm Quantity:4 Features: Safe power function:regardless of the throttle stick in any position the motor will not start immediately Throttle Calibration function:Adapt to different remote throttle travel difference, improve throttle response linearity, with a smooth, delicate feel and excellent speed linear speed Low Voltage Protection Mode ,Low-voltage protection threshold Pakacge Included: 4 x HW30A Brushless ESC