ITEM NAME:2S Li-ion 30A Brushed ESC RC Car Boat Speed Control - Forward Reverse Brake Description: Compact and lightweight, easy to install and use Designed for receiver and steering servo Compatible battery: 2S Li-ion(7.4V) (not included) Suitable for rc car or boat Connector: short red (positive) and black (negative)------battery; long red and black(positive or negative is random)------motor; black red and white three-one line------ch2 of receiver Specification: Function: forward, reverse, brake Voltage: 3.0V---9.4V Signal: PPM Frequency: 2KHz Output currents: 20A, 30 seconds 25A, 5 seconds 50A; 80A peak UBEC output voltage: 5.7V Size Chart: Size: approx. 40 x 19 x 10mm/1.57 x 0.75 x 0.39inch Package Includes: 1 Piece 30A Brushed ESC Note: 1.Please allow minor error due to manual measurement. 2.The colors may be a little difference for the different monitor display. SKU: MNF0011837461013756.Compatible battery: 2S Li-ion(7.4V) (not included). 1 Piece 30A Brushed ESC. Suitable for rc car or boat. Function: forward, reverse, brake. Frequency: 2KHz. Compact and lightweight, easy to install and use.