I won a couple trip voucher's from a timeshare presentation. Can I sell them?

I went to a timeshare presentation and in the end I received a couple voucher’s to send for two trips, both paying airfare and hotel stay.
I am in need of some money. Can I sell them? Will I, or whoever buys that from me, be in trouble?
Thanks.

Is there a difference timeshare points from wyndahm and resale?

If i only want to use wyndham/fairfield resorts, are resale points treated any different than the points that i but from wyndham? If I did want to use a different timeshare, how do i trade my points? Can I use my points for other things like cruises, airfare, and rental cars?

I'm going to a timeshare today, they are offering a free gift? Do I have to buy a timeshare in order to get it

It’s for Wyndham Resorts, two nights + airfare to Vegas for two people paid. No obligation buy. Sit through a 90 minute speech and get the free prize. Seems too good to be true, is it?
What’s the catch?
I’ve heard they’ll offer you "vouchers" instead on actual plane tickets….I’m just SO sceptical.