Usage Tips: - CW speed adjustable from 1 to 999 WPM - Programming and interfacing via USB port (command line interface) - PTT output with configurable lead, tail, and hang times - 2 memory slots with macro support - Dimensions: 50 x 58 x 24 mm - Compatible with terminal server programs (e.g., PuTTY) or Arduino Serial Monitor - Speed adjustment via potentiometer or command - Supports QRSS and HSCW modes - Beacon / Fox hunting mode - Iambic A and B keying modes - Straight key mode - Ultimatic mode - Bug mode - Paddle reverse function - Farnsworth timing - Adjustable frequency sidetone - Sidetone disable option - Command mode for paddle-based configuration, memory programming, etc. - Keying compensation - Dah-to-dit ratio adjustment - Weighting adjustment - Callsign receive practice - Send practice - Memory stacking - Logging and contest program interfacing via K1EL Winkey 1.0 and 2.0 protocol emulation - Dead Operator Watchdog feature - Autospace function - Wordspace adjustment - Pre-configured and custom prosigns - Non-volatile storage for most settings - Modular code design for feature selection and customization Color: Blue Material: Aluminum + electronic components Package Contents: - 1 x Open CW Keyer MK2 Kit - 1 x Cable Note: The package includes only the items listed above. Other accessories are not included. Light reflection and display variations may cause slight color differences between the image and the actual product. Measurement tolerance: ±1–3 cm.