Features: 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 memories with macros Dimensions: 50 x 58 x 24 mm CW keyboard interface (via terminal server program such as PuTTY or Arduino Serial Monitor) Speed potentiometer (speed also adjustable via commands) QRSS and HSCW support Beacon / Fox mode Iambic A and B modes Straight key mode Ultimatic mode Bug mode Paddle reverse Farnsworth timing Adjustable frequency sidetone Sidetone disable Command mode for using the paddle to change settings, program memories, etc. Keying compensation Dah-to-dit ratio adjustment Weighting Callsign receive practice Send practice Memory stacking Logging and contest program interfacing via K1EL Winkey 1.0 and 2.0 interface protocol emulation Dead Operator Watchdog Autospace Wordspace adjustment Pre-configured and custom prosigns Non-volatile storage of most settings Modular code design allowing feature selection and easy code modification Color: blue Material: aluminum and electronic components Package Contents: 1 x Open CW Keyer MK2 Kit 1 x cable Note: Light reflection and display differences may cause slight color variation between the image and the actual item. Measurement tolerance: ±1–3 cm.