The following are optional

Conference technician

Data projectors

Dvd player

Desk top conference microphones

Flip chart, paper and pens

Laser pointers

Laptops

Lecturn / Podium

Microphones: Cordless, lapel

PA System (complete)

Projectors: O/H and slide

Screens
Stands

Translation booths and equipment

Video conferencing equipment

VCR  and monitor