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Hey, great! The lapel mike is a great idea, and I have experience with them. And a possible advantage over a hand-held mike is that people wouldn't feel they should have a turn, and take the mike to talk into it, as you may do with a tape recorder. And she wouldn't have to exert strength to hold the mike and operate the button. I will look into power consumption, too. On Tue, 22 Feb 1994, Michael Gary Duncan wrote: > Radio Shack has some inexpensive devices that you might try. A powered > speaker with microphone input. Use a lapel mic and attach the speaker to a > belt. The also have a hand held amplified mic. There are also amplified > bull horns (over kill). A simple megaphone might be helpfull. > > If there are any others, please post. We have a need for these devices for > our guided plant tours.