Feature: 1. Protection Function: 20A brushless ESC has low voltage protection function, over temperature protection function, and protection against electric regulation damage. 2. Accurate Control: Brushless ESC can accurately control the speed, automatically control forward and backward, without changing the connection sequence between the motor and the electric controller. 3. Stable Durable: Multi layer PCB, which supplies power to MCU to improve the stability and durability of the motor. 4. Small Size: Brushless electronic speed controller is small in size and light in weight, and can be applied to unmanned aerial vehicles,RC aircraft, etc. 5. Easy to Use: Electric speed controller is easy to operate and use, and can be used after installation without complicated procedures. Specification: Item Type: 20A Brushless ESC Material: Silica Gel, Copper Output Capacity: Continuous Current 20A, Short Time Current 25A (not Less Than 10s) Input: 2-3 Lithium Battery Packs or 5-9 ni mh BEC Output: 2A/5V BEC Type: Linear Voltage Stabilization Applicable:For UAV. Package List: 1 x 20A Brushless ESC 1 x User Manual Note: 1. Please allow an error of 1‑3mm due to manual measurement.2. Due to different shooting lights, and differences between monitors, pictures may not reflect the actual color of the real thing.