Full digital control mode: the use of CPU digital output, PWM work mode to control the circuit. Speed limit function: according to the different operating environment of the vehicle, adjust the speed to adapt to the vehicle, to achieve the best operating state. High pedal (HPD) function: when the accelerator does not return to the position, indicator light fault display, prompt the driver to prevent flying, to protect the safety of the driver 4. Easy and convenient for installation, directly fitment. Wonderful replacement for the old or broken speed controller. Condition: Brand New Item Type:Mobility Scooter Speed Controller. 15.6 x 9 x 4.5cm / 6.1 x 3.5 x 1.8in. We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. Post a message again because sometimes our message system may block some emails. If you are satisfied with our service, pls. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.