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You can make an lo-fi app that they can only click a big button to call their family and friends. Elder person can choose which person to call by saying their names to the app. Also by touching the flash-light of their phones, phone will measure heart beat rate of elder person and will send it to his/her family and friends

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They can send personalized AR emojis

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Headphones to listen to music with their families at the same time.

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When they use it, they need to sterilize the outside of this ball when they come back from a meeting, you can add disposable layer to outside of the ball