The Aero Selfie D6-4IN1-D0 brushless electronic speed controller (ESC) is a cutting-edge solution designed for small drones, offering the next generation of three-phase brushless motor drive technology. This ESC utilizes a highly integrated 32-bit controller that delivers exceptional performance, high drive efficiency, and reliable operation in a compact form factor. The 4-in-1 integrated design of this ESC simplifies drone assembly by consolidating the control of four motors into a single unit, significantly enhancing the ease of installation and the overall efficiency of your UAV. Weighing only 5.4 grams, the D6-4IN1-D0 is an ideal replacement for consumer drones, ensuring that your UAV remains agile and responsive. Powered by a 32-bit high-speed MCU, this ESC offers ultra-fast response and superior performance. It supports high-frequency PWM, hardware synchronous rectification, and regenerative braking for optimal energy recovery. The 4-in-1 design reduces the need for additional components, simplifying the drone's structure while maintaining a lightweight profile. Equipped with stalling protection and natural cooling, it ensures reliable operation in various conditions. The ESC supports input voltages from 5V to 15V, with a recommended 3S lithium battery, making it versatile for different drone configurations. Throttle signal configuration includes an initialization signal range of 1000-. Motor sound indicators feature three beeps (low, medium, high) when initialization is complete, a single beep every three seconds when no throttle signal input is detected, and two beeps (medium, low) for stalling protection reset. This Aero Selfie 4-in-1 ESC is an essential upgrade for drone enthusiasts seeking enhanced performance and reliability in their UAVs, making it a top choice for both professional and recreational use.