1、The computer edits the procedure and adjustment. The holding machine edits the procedure and adjusts the index sign by connecting the personal computer proceeding. 2、16 memory frequency channels, adoption of phase-lock loop frequency synthesis, mini-computer control, fast menu, expedient operations. 3、The machine has the scanning function 4、With super-mini and beautiful design, and easy to operate without keyboard operation. 5、Electricity sparing functions, prolong using time. 6、Earphone/microphone rabbet, facility for listening and talking.