Features: CW speed adjustable from 1 to 999 WPM Programming and interfacing via USB port (" line interface") PTT output with configurable lead, tail, and hang 2 memories with macros Purchase Notes: This product has many functions. The finished product can directly use the installed and set it up with the software. Dimensions 50x58x24 mm. Serial numbers CW keyboard (via a terminal server like or the Serial ) Speed potentiometer (speed also adjustable with commands) QRSS and HSCW Beacon / Fox mode Iambic A and B Straight key mode Ultimatic mode Bug mode Paddle reverse Farnsworth Timing Adjustable frequency sidetone Sidetone disable mode for using the paddle to change , memories, etc. Keying Compensation Dah to Dit adjustment Weighting Callsign receive practice Send practice Memory stacking Logging and Contest Interfacing via K1EL Winkey 1.0 and 2.0 interface protocol emulation "Dead Operator Watchdog" Autospace Wordspace Adjustment -configured and Custom Prosigns Non-volatile storage of most Modular code design allowing of features and easy code modification Color: blue Material: aluminum+electronic components Package Contents: 1 x CW keyer MK2 KIT 1 x cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.