Support bluetooth connection mode, simple connection operation.
It mainly contains the following functions:
1. Support bluetooth connection mode, simple connection operation.
2. Set the default label print size to 100 x 150mm. Labels of other sizes are optional.
3. The command is optional, but the default is TSC.
4. Print resolution optional: 203, 300dpi.
5. Printing speed can be adjusted.
6. Printing concentration can be adjusted.
7. Support picture and PDF printing.