The electromechanical musical instrument and other news

BBC Click's Lara Lewington looks at some of the best of the week's technology news stories, including:

Two Russian intelligence agency officers (FSB) have been indicted by the US Department of Justice along with two alleged criminal hackers over the 2014 Yahoo data breach - the Kremlin has denied that the FSB was involved
An airline passenger is injured by exploding battery-powered headphones
The electromechanical musical instrument

See more at Click's website and @BBCClick.