The Behringer Ultravoice XM8500 fits the bill for a stage-tough dynamic handheld vocal mic. Dynamic mics are rugged, moisture-resistant and have relatively high gain (as compared with condenser mics), making them ideal for live vocals and for miking (boisterous) amplified instruments. The XM8500's cardioid pickup pattern captures your lead singer or guitar cab, while rejecting off-axis sound. It exhibits an impressive frequency response of 50Hz to 15kHz (with a mid-frequency presence rise for enhanced voice projection), and incorporates a two-stage pop filter. Your mic locker needs a Behringer Ultravoice XM8500. Or two.