The breakthrough design of the iPod - a portable music player that made the CDs and cassette tapes that had gone before redundant - totally changed our listening habits. Tony Fadell is its inventor. Speaking to 17-year-old budding designer Anna Zanelli in London, he explains how his love of DJing inspired his iconic creation. And, he tells her, the design would go on to transform how we talk to each other, with the launch of the iPhone. #WorldWiseWeb

Producer: Tamsin Barber

World Wise Web is a co-production between BBC World Service and BBC Rewind. bbc.co.uk/archive