[Bluetooth speaker] production and R & D of electronic circuit board, welding and processing of PCB circuit board, Fandou technology, and customized development of single chip microcomputer

[Bluetooth speaker] production and R & D of electronic circuit board, welding and processing of PCB circuit board, Fandou technology, and customized development of single chip microcomputer

  • Model: [Bluetooth speaker] production and R & D of electronic circuit board, welding and processing of PCB circuit board, Fandou technology, and customized development of single chip microcomputer

[Bluetooth speaker] production and R & D of electronic circuit board, welding and processing of PCB circuit board, Fandou technology, and customized development of single chip microcomputer