An artificial intelligence-based system is being developed to spot what goods shoppers pick up in convenience stores so that they can be charged without having to queue at the till.
A prototype version of the technology by the San Francisco start-up Aipoly is on show at the CES tech show.
Amazon is known to be working on similar technology.
BBC Click’s Lara Lewington tried it out.
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See more at Click’s website and @BBCClick.