The standalone through hole kit has all the components except a user supplied CR2032 coin battery that mounts in the pcb battery holder. On a difficulty scale of 1 to 5, 5 being the most difficult, this is rated at 4, due to some small hardware. Assembly time is around 2-3 hours, depending on experience."
For all the details - please visit: https://qrpguys.com/kd1jv-single-lever-cw-trainer
Always happy to report on any product relating to CW !!!
72 de Larry W2LJ
QRP - When you care to send the very least!