article_snippet: Inside Each shoe's sole is a Bluetooth receiver that connects these displays to a smartphone app.
article_snippet: Inside Each shoeis a Bluetooth receiver that connects the displays to a smartphone app .
article_snippet: Inside Each shoeis a Bluetooth receiver that connects the displays to a smartphone app.
article_snippet: A wireless module, also in the shoe's sole, allows Each shoe's display to be charged wirelessly .
article_snippet: Another wireless module in the shoe's sole allows the shoe's display to be charged without cables.
article_snippet: A wireless module, also in the shoe's sole, allows the shoe's display to be charged without cables.
highlights_snippet: Inside Each shoe's sole is a Bluetooth receiver that connects to an app .
  
highlights_snippet: A module, also in the shoe's sole, means the shoes can be charged wirelessly .
  