Mobile Code Connector Compatible with Windows, macOS, Linux, and Hongmeng systems, ensuring seamless connectivity across your devices. Userfriendly design: supports both manual and automatic keystrokes, making Morse code practice straightforward and flexible. Stable performance: reliable and consistent operation for a smooth training experience, suitable for learners at any level. Sizing reminder: Ensure your key plug is 5mm; non3.5mm plugs require a simple conversion connector or cable. Use scenarios: practice at home: connect to a computer to practice Morse code with either manual input or automated keystrokes. Amateur radio and field work: interface with a computer or microcontroller to practice or transmit Morse messages in operational environments. Education and clubs: support crossplatform Morse code training in classrooms or member clubs using Windows, macOS, or Linux systems.