Wireless Earphone Building: Permission, Frequency & Schematics

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Building a wireless earphone requires obtaining permission due to frequency regulations. The project involves setting up a transmitter and receiver, with a focus on using unlicensed frequencies to avoid licensing issues. Guidance is sought on fixing the frequency for both circuits and advice on suitable schematics, chips, and circuitry. Participants emphasize that while they can provide help, they will not complete the project for the inquirer. Specific questions about challenges encountered during the project are encouraged for further assistance.
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Hello Guys

I am about to plan for building a wireless earphone that uses a transmitter and receiver. I have talked to my professor in regard of it, I figured out that I need a permission to be able to build such a project. Then, I changed some basics that I thought the project would have. Now, I am trying to fix the frequency for both the transmitter and receiver beasue I cannot use big frequencies becasue of the license. My question, How can I fix the frequency for both those circuits ?? and what would you advise me in regard of the schmatics, chips, and circuitry that will be used ?
 
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You can use an unlicensed frequency.
http://www.teledesignsystems.com/downloads/ts4000/Apps/Unlicensed%20VHF.pdf

As for the other questions, we can't do your whole project for you. If you get stuck on a specific point, feel free to post it as a question.
 
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