Some visitors to the Consumer Electronics Show (CES) in Las Vegas are angry that the so-called 'booth babes' are back despite much criticism at last year's event.

A year after the BBC first highlighted the issue scantily clad women are still a staple of electronics and technology shows around the world, but some females in the industry feel the tactic has been taken too far.

While models have been banned from technology and gaming expos in China, the US is seeing a steady growth in their use in marketing. Critics say their presence is degrading to women and contributes to the fact that so few women want to take up careers in engineering.

Produced by the BBC's Matt Danzico