This manual covers the basic functions, safety precautions, and installation steps for the BBK HWDCD007(102)TSD telephone system. It describes the base (座机) and sub (子机) units, their features, and how to connect up to four sub units.
The document also includes technical specifications such as the 2.4 GHz communication frequency, power output, temperature range, and audio levels, as well as regulatory information on hazardous substances in the components. This manual is written in Chinese.