Not sure how usual or unusual this scenario is - most bars and nightclubs that have bands playing have the sound system set up for those bands. Therefore, I bring something unsuitable for a band, that could interfere with the sound for the bands. Using the existing mics isn't really an option -- way too awkward.

What is the best hands-free mic for something like this that would pick up my voice, one or more spectator's voice(s) near me, and WOULDN'T interfere whatever's plugged in for the bands?

Thank you.

I use a Samson cheek mic and that connects to a wireless receiver. Just plugs into the sound board. Usually they can even set my levels independently.

My favorite choice is a Countryman E6 earset mic:

http://www.countryman.com/e6-earset-microphone/

Buy a directional one, because if it's omni-directional it will pick up too many other sounds.

Like WitchDocChris said, you should also bring your own wireless mic system. Shute, Sennheiser and Audio Tachnica are good brands.

I went with the Samson.

Where does the transmitter transmit to-? To a receiver? To the speaker? Where can I find some basic How To's to explain like I'm a 5 year old?

Also, for the receiver - does that connect to the speaker?

So, if I have the Samson SE50, a transmitter, and a receiver (3 items), will that cover sound for me at a show?

Thank you for any help.

It's pretty straight forward, really.

Headset connects to transmitter via a cable that runs down your back. Transmitter usually goes in the back pocket or on the belt. That connects to the receiver via radio. Receiver is connected to the PA or sound board via cable. Usually TRS (like a giant headphone jack) or XLR (round with prongs inside).

For most receivers I've played with, it's clearly obvious what goes where. The only confusing part (to me) is connecting to the existing sound system, but usually there's someone there to do that anyway.

Professional Grade Systems have the options to change frequencies.

I just got off an arena tour... one of the jobs that Audio techs are paid to do each day is scan frequencies for interference in each town and pick only clean channels to use each day.

With a single mic like most magicians use it's not that bad. So many tours now use 20 or more RF transmitters between mics, wireless guitar and keys and then there are the transmitters for the in ear monitors that are so ubiquitous now. RF sweeping is vital!