The speaker's main aim is to ...
a) describe a new invention.
b) advertise a new product he has invented.
c) persuade somebody to invest money in his invention.

I came up with the idea for this about 5 years ago but only built in the past 12-months it's circular with handles on each side is battery powered rechargeable batteries of course they are inserted just here it's made of Steel and plastic and it allows you to browse the internet as well so it's a computer combined with the camcorder I've met quite a few people who might be interested in investing in it testing it because it'll take a lot of money or cost to develop and produce but I haven't heard back from them which is a bit worrying because I need money to start advertising it