Since young kids tend to be fiddlers we have found it safest to use medium duty wire frame headsets microphones for younger children.
They are less likely to be broken, are easier to position.
Plus, since ours are cardioid units designed to be placed in front of the mouth, they are better at capturing "little" voices.
For older kids and adults any of our earsets or lightweight headsets are ideal.
Longer rental periods, more channels, microphone and antenna upgrades - all available