Feature: 1. With Excellent Performance: Outstanding start up performance, responsive start up time, and linear braking performance. 2. Continuous Current Resistance: Exceptional continuous current endurance and excellent heat dissipation. To provide you with a better use experience. 3. Multiple Protection Functions: Including low voltage protection, overheat protection, throttle loss protection, and motor lock protection for enhanced safety. 4. Optimal Control: Enjoy optimal control and accuracy with easy to use interface and advanced firmware for superior control of your cars and devices. 5. High Performance : 30A waterproof brushless designed for high performance brushless motor operation. Meet your daily use needs. Specification: Item Type: RC Brushless Motor Electric Speed Controller Weight: 117g/4.1oz Material: Plastic and aluminum alloy and electronic components Model: 30A Violent Discharge: 180A BEC Output: 6V 1A Continuous Current: 25A Internal Resistance: 0.002Ω single bridge arm Number of Cells: 4-9 cells NiMH, 2-3S Lipo. Package List: 1 x Electric Speed Controller2 x Strap 1 x Instruction Manual 2 x Rubber Heat Shrink Ring 1 x Double Sided Tape 4 x Screw 1 x Accessories