This user manual provides a detailed introduction to the usage and operation steps of the Rino Xiaoxini product. It mainly includes 3 parts: explanation, main page and appendix. The explanation part introduces the instructions, safety performance, precautions, etc. of the manual. The main page part is divided into different topics to describe the usage characteristics of Xiaoxini. The appendix part lists technical indicators, accessories, data interface definitions, fault diagnosis, wiring diagrams and custom coordinates.