What brand and model hands free style vocal headset microphone do people here recommend ?

I plan to use it for my vocals (singing):

1) connecting directly into my Tyros 4 keyboard's 1/4"/XLR mic input jack on the back of the keyboard, or

2) into the 1/4" input on my Alesis NanoVerb, and in turn connected to my microARRANGER via the keyboard's "line input" jack.

Would you recommend:
Wired or wireless?
Condenser or Dynamic?

Is the Crown CM311A still the recommended vocal headset mic to get?
I notice that several members had bought that one but then later sold theirs.

Thanks in advance for sharing your hands-free headset mic experiences, as well as headset mic purchasing advice and recommendations.

Thanks,

Scott