Our 4 key VSI joystick controller is made by PG Drives Technology, and it is the same joystick model that Hoveround® uses on their MPV5® power chair.The following functions are available to this VSI joystick controller: Joystick ControlThe joystick is used to control the direction and speed of the power chair. Actuator AdjustmentThe user can control positioning of power accessory actuators with the VSI. Drive Profile SelectionThe user can select from available drive profiles, if programmed. Speed AdjustmentThe user can increase or decrease the maximum speed of the power chair, if programmed. Sleep ModeThis feature is designed to preserve battery charge, and can be disabled through programming. Thermal RollbackThis is a safety feature designed to prevent the power chair from overheating and causing damage to the motors or controller. Note: Hoveround® is a registered trademark of the Hoveround® Corporation. This PG Drives Technology joystick controller has been verified by Monster Scooter Parts staff to be compatible with the listed Hoveround® model. PG Drives: D51112
