Here are some key features and characteristics of this ESC:

D-SHOT Protocol: The D-SHOT protocol is a digital communication protocol used to transmit control signals from the flight controller to the ESC. It offers more precise and faster communication compared to traditional analog protocols, resulting in improved responsiveness and accuracy in motor control.

Bullet Series: The "Bullet Series" typically refers to a line of EMAX ESCs designed for compact and lightweight applications. They are known for their high performance and reliability.

20A Rating: The ESC has a current rating of 20 amperes, indicating its capacity to handle the current requirements of the motors it is connected to. This rating is suitable for small to medium-sized multirotors.

2-4S LiPo Compatibility: The ESC is compatible with 2 to 4-cell LiPo batteries. This voltage range covers the typical power requirements of multirotor drones, allowing you to select batteries within this range.

BLHELI_S Firmware: The ESC uses BLHeli_S firmware, a well-regarded firmware in the RC community known for its stability and performance, providing smooth and efficient motor control.

3.5g Weight: The ESC is lightweight, weighing only 3.5 grams. This is advantageous for applications where minimizing weight is essential, such as racing drones and acrobatic multi-rotors.

Support for Oneshot42 and Multishot: Oneshot42 and Multishot are two different motor control protocols that provide fast and precise motor control. The ESC is compatible with both of these protocols, allowing you to choose the one that best suits your flight controller and setup.