Features:
Simonk firmware
Max.support rotation speed: 210，000rpm/2-pole; 70，000rpm/6-pole; 35，000rpm(12-pole)
Built-in linear BEC
With low voltage， overheat protection and self detection function
EMax SimonK Series Brushless Speed Controller 12A ESC 1-3S Lipo for Quadcopter
Suitable for FPV QAV250 Aircraft

Specifications:
Constant Current: 12A
Input Voltage: 1-3 cell Lipoly
BEC: Yes (linear) [Remove middle wire to dissable]
BEC Output: 5V/1A
PWM: 8 KHz
Max RPM: 240，000rpm for 2 Pole Brushless Motor
Size: 22*17*7 mm
Weight: 8g
Package weight:18 g

Package including:
1 x Brushless Speed Controller