?Features:
Simonk firmware
With low voltage， overheat protection and self detection function
Max.support rotation speed: 210，000rpm/2-pole; 70，000rpm/6-pole; 35，000rpm(12-pole)
MCU and BEC with independant regulator
Parameter adjustable by programer or remote controller
Throttle stroke adjustable， compatible with different receivers.
Built-in linear BEC or switch mode BEC

Specifications:
Continuous current: 20A
Burst current(10s): 25A
Li-Po battery: 2-3S
Dimension: 55*28*7mm
Weight: 28g
BEC mode: Linear
BEC Output: 5V 2A
Programmable
Package size: 16 * 11 * 3cm / 6.4 * 4.4 * 1.2in
Package weight: 150g / 5.2 oz


Package list:
4 * Emax Simonk 20A Brushless ESC Electronic Speed Controller