.
Low voltage cutoff protection, over-heat protection, throttle signal loss protection.
Compatible with 2-4 lithium batteries(Not included).
Timing can be changed to be suitable for different brushless motors.
Great choice for university professors and students who are interested in developing software for multicopter parts.

Specifications:
Item: ESC
Current:  40A
Output Capacity: Continuous Current 40A, Short-time Current 55A (not Less than 10 Seconds)
Power Input: 2-4 Lithium Batteries(Not Included)
BEC Output: 5V@3A (Linear Regulator Mode-Linear Mode)
Size: (Approx) 68*25*8mm

Item: Motor
Size: 27.8*32mm
Shaft Diameter: 4mm
Accessories: 4.0mm Prop Adapter, Motor Mount, Screws

Package Information:
Package Size: 25*15*3cm
Package Weight: 120g
Plastic Package

Package List:
1* 1250KV Brushless Motor
1* 40A ESC