How a Wireless Mouse Works

Daddy and Sammy were looking at two wireless mouses in an electronics catalogue.  One was $26 and the other was $59.

Sammy: (pointing at the cheaper one $26) Daddy, why is this only $26?

Daddy: (trying to figure out the difference) Hmm… let’s see… this more expensive one is wireless.  That means it can talk to the computer without…

Sammy: Without a telephone?

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