When connected to the motor, it has the function of forward, reverse and brake. Small, yet powerful, it can be used in most remote cars. It can be used to replace old or damaged remote motor speed controllers, which is very practical. Made of materials, it is durable and can be used for a long time. This RC car speed controller provide a easier way for you to remodel your RC car,which is very convenient. Specifications: Color: as shown. Material: synthetic material. Size: 25 x 23 x 5mm Current Parameters: Forward: 30A Instantaneous peak: 40A Back: 20A Brake: 40A UBEC Output: Voltage 5.7V, Current 1A (Supply receiver, servo power) Voltage support: 4 - 8v can be directly on the 2s lithium (7.4V) Function: forward, reverse, brake Note: There may be little color differences depending on the resolution. There maybe a slight error due to different measurements. Package included: 1 x Brushed ESC. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.