1. This is a programming line specifically used for the CAN protocol motor. It can address the issues of setting the wheel diameter and removing the speed limit. When your M600 motor is factory - limited to 32KM/H and you feel the speed is too slow to meet your needs, or when you change to a new frame and the wheel diameter size differs from the one set in the motor, resulting in an incorrect speed display on the screen, it can be quite disappointing. This programming line can solve these problems and make you satisfied. 2. This programming line is simple and easy to operate. 3. Operation introduction: - First, connect and power on the motor. - Then, connect the motor to the main line of the instrument. - Next, connect the interfaces at both ends of the programming cable to the motor and the display screen respectively. - After that, connect the USB plug of the programming cable to the USB interface of the computer or display screen. - Finally, when the programming line indicator lights up, it indicates that the connection is successful. 4. Type: Speed Sendor. Fit: for mid motor. Colour: black. Material: plastic. 5. Package Contents: 1 x Programing Cable. Only the above package content is included, and other products are not. 6. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement error is allowed to be +/- 1 - 3cm.