How to apply this answer
Count roles and simultaneous use, not only named speakers. Handovers can reduce quantity, but they add timing, hygiene and mute-control risk, so assign each transfer to one person.
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You can start without a complete equipment list. The message is editable before you send it.
Direct answer
the input list counts every live role, handover and one prepared spare
Count roles and simultaneous use, not only named speakers. Handovers can reduce quantity, but they add timing, hygiene and mute-control risk, so assign each transfer to one person.
Run the programme in order and prove every microphone can be issued, identified, unmuted and returned at the correct moment. Check batteries, handling noise and RF coverage from every speaking position.
A panel may need one microphone per panellist, one for the moderator, two roaming units for Q&A and one tested spare, even when only one person speaks at a time.
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Send the date, venue or area, guest count, programme and required outputs. You can start without a complete equipment list.
This guidance separates general advice from event-specific facts. Confirm venue conditions and your event details before finalising the requirement.