This is a very nicely engineered bug, with fully adjustable speed, contact spacing and dwell, and lever arm tension. The pendulum is calibrated so you can see the dit speed that is set, on a scale from 0 to 10. Actual speed range is around 12wpm to around 40wpm. The contacts are machined silver, for high current capacity. It comes with a plastic cover to protect against dust, and a special rubber base pad so it won't move around on the table.
Net weight is two pounds ten ounces.
The MK-706 arrived yesterday and I want to let you know that it is really an outstanding product. MK-706 I bought last week.