A way to monitor an adult or child who has behavior or memory issues discretely. A novel and definitely cool idea.
Pros:

• Discrete, not alerting the person monitored or others of its existence.
• Modestly priced for a monitored system.
• Child and adult sizing.
• Different pricing options.
  Cons:
• Will only work if shoes are on, so in a child could easily be left off.
• Ongoing monthly costs.
• Uncertain of life expectancy as use in a shoe could lead to wear and tear.
  Summary: One more option for someone who needs the safety of their location being monitored. Cool,