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Listening device design for kids

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ricky_wcy

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I am Looking for some design for a TOY-grade listening device for kids use.

1. Hear ppl talking content at least 10m far away from

Any idea, folks ?
 

Re: Listening device

A sensitive microphone with pre-amplifier should do the job. Keep the mic at the end of a small tube or something a direct it to the speaker.

It will be good to add an AGC loop as well... in case a loud noise comes in.. it can protect your ears!
 

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