CW speed adjustable from 1 to 999 WPM. Programming and interfacing via USB port ("Command Line Interface")PS2 keyboard interface for CW keyboard operation, no computer requiredPTT output with configurable lead, tail and hang times. 3 memories with macrosSerial number. CW keyboard (via a terminal server program such as Putty or for Arduino serial program)Speed potentiometer (speed can also be adjusted by command)Type: DIY Kits / AssembledQRSS and HSCWBeacon/Fox Modeiambic A and BDirect key modeUltimate ModeError modeReversing the leverHellschreiber mode (keyboard send, memory macro, beacon)Farnsworth TimekeepingAdjustable frequency sidetoneSidetone disabledUse the lever to change the command mode of settings, program memory, etc.Keying compensationDah to Dit ratio adjustmentWeightedCall sign reception practicesend practiceMemory stackingLogging and contest programming interface Klewinkki via 1.0 and 2.0 interface protocol emulationAuto spaceWord space adjustmentPreconfigured and custom ProSignNon-volatile storage of most settingsModular code design, allowing selection of features and easy code modificationMaterial: Metal + Plasticcolour: blue Package Contents:1 x Open CW keyer MK2 KITOnly the above package content, other products are not included.Note: Light shooting 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.