✔Speed, Max support rotation speed: 210,000rpm/2-pole; 70,000rpm/6-pole; 35,000rpm (12-pole), Simonk firmware<br><br>✔ Self-detection function, With low voltage, overheat protection and self-detection function<br><br>✔ Built-in linear BEC, MCU and BEC with independent regulator, Parameter adjustable by programmer or remote controller<br><br>✔ Stroke adjustable,throttle stroke adjustable, compatible with different receivers, Suitable for F450 FPV QAV250 Aircraft<br><br><br><strong>✔ Specifications:</strong><br>   Continuous current: 20A<br>   Burst current (10s): 25A<br>   Li-Po battery: 2-3S<br>   BEC mode: Linear<br>   BEC Output: 5V 2A<br>   Dimension: 55*28*7mm<br>   Weight: 28g<br>   Package weight: 150 g<br><br><br><strong>✔ Package Included:</strong><br>   4 X EMAX Simonk 20A Brushless ESC Electronic Speed Controller