I found this at another bb. Is is nicer than others that I have tried, it allows you to send the tones through your sound card instead of the pc speaker. When you route the tones through the external speakers (sound card) you can control the volume much better or you can use a head set. (just in case you are in the office practicing morse code). http://www.btinternet.com/~tony.lacy/ Matias ps I have no interest in this company/source... happy sailing