If you're looking for a full rehearsal audio solution, The Anchor Audio
MegaVox Packages are the best (and most affordable) options.
The Anchor Audio Microphone Boom Stand is an adjustable-height, sturdy stand designed to hold any standard microphone. These are durable enough to hold up outside during a marching band rehearsal, but they are also lightweight enough to be collapsible to fit easily in any space on the road.
These stands have a max height of 63", and they collapse down to 36". The boom arm is 33" long, and the whole stand comes in a black chrome finish.