Hearing balls bounce at Australian Open and other tech news

BBC Click’s LJ Rich looks at the best of the week's technology news stories including:

  • Microsoft announces it will buy the games company behind the Call of Duty franchise for $68.7bn (£50.5bn)

  • The UK Treasury announces new laws to deal with misleading crypto-asset promotions

  • Action Audio helps the Australian Open become more accessible to people with sight loss by enabling the position of the tennis ball to be heard

See more at Click's website and @BBCClick

Related topics

  • New tech demos