Optimal Performance: Designed for versatility, the XXD 30A ESC supports 2-4S LiPo batteries, ensuring compatibility with a wide range of RC models. Its integrated 5V 2A BEC stabilizes power supply to RC receivers and other components. and Reliable: Built to withstand rigorous use, this ESC features advanced thermal protection and over-current protection to enhance and safe operation during intense flights. Enhanced Control: Experience smooth and responsive control with this ESC's precision throttle linearity and smooth startup. Ideal for RC helicopters, multicopters, and airplanes, it provides a seamless flying experience. Easy Installation: The compact design and clear instructions straightforward to integrate into your RC setup, allowing for quick upgrades and maintenance. Product name: 30A brushless electronic speed controller Type: short line Output capacity: continuous current 30A, instantaneous 35A, 40A for 10 seconds Power input: 2-4 lithium batteries (not included) Voltage range: 4V-16V BEC output: continuous 2A, (instantaneous 3A) 2LIPO 4-5 micro-servo, 3LIPO 3-4 micro-servo Maximum speed: 210,000 rpm for 2-pole internal rotation, 35,000 rpm for 12-pole external rotation, 42,000 rpm for 14-pole external rotation Colour:As Shown Material:Plastic Package Contents: 1 x Brushless 30A Electronic Speed Controller 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.