? 4pcs 12A Brushless ESC Electric Speed Controller with 1A BEC for RC 250 Quadcopter.

Features:
Using MCU processor， the user can set against their demand function.
Speed smooth feel， good linear speed regulation.
Support unlimited high speed and constant speed function brushless motor.
Startup mode can be set up， the throttle response speed.
Built-in SBEC， load power is big， small power consumption with servo.
Multiple protection， overvoltage and overheating， loss of gas.
Compatible with all remote control Settings and support programming card set.

Specifications:
Constant Current: 12A
Burst Current: 15A
Battery: 2-3S Lipoly
BEC: 5V / 1A
ESC Size: 3 * 2 * 1cm
ESC Weight: 14g
Plug Size: 2.0mm
Package Size: 8 * 6 * 2cm / 3.2 * 2.4 * 0.8in
Package Weight: 56g / 2oz

Package list:
4 * 12A Brushless ESC