1. The components are used to the high quality of the ESC, especially the current resistance. 2. Based on BLHeli and optimized, the throttle linearity is . 3. It is optimized for multi-axis and supports fixed wing and helicopters . 4. Direction is added to the programming item, supporting two-way mode. 5. Multiple parameters of the speed governor can be set through (programming card) or remote control, and the default parameters can be restored through the remote control or programming card. 6. With low-voltage protection, over-temperature protection, multiple protection functions for signal loss. 7. With a warning function, the throttle is at the lowest throttle for a certain period of time, and the ESC will beep to retrieve the lost flight equipment. 8. The throttle range can be set to be compatible with different receivers, with a and delicate speed control feel. Colour:As shown :Plastic + Metal type:40A Package Contents: 1 x Brushless ESC Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.