El malki Boubker (Canada)
Just Whistle
Do you remember those key-rings equipped with an alarm device? When you whistle the alarm goes out which allow you to find your keys.

Now let's grab this idea and apply elsewhere. What about remote control for TV or other electronic devices. If you are like me always looking for your remote control, just buy an alarm key-ring and stick at the back.

Reward: Just whistle and enjoy it.

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