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SilverPush Use ultrasonic inaudible sounds for tracking you Your TV ads could play these beacons to which your phone is actively listening. Or websites and p
by xstartup 8y ago
SilverPush
Use ultrasonic inaudible sounds for tracking you
Your TV ads could play these beacons to which your phone is actively listening.
Or websites and physical places could play them.
See: https://techcrunch.com/2014/07/24/silverpush-audio-beacons/ https://techcrunch.com/2014/07/24/silverpush-audio-beacons/