article_snippet: Although many apps and bands track people in a similar way, Haier claims Haier devices differ because the microphone on each doubles up as a speaker.
article_snippet: In the future Haier said Haier plans to launch an SOS service that can be accessed directly from the band in the case of emergency.
article_snippet: Haier claims  Haier devices differ from others on the market already because the microphone on each doubles up as a speaker .