Startup New Project - Small Audio Device

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Kingsbull

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Hello to all

I need to build a device to transmit music. - For example Like a cellphone

- the music can be only one music and be saved (included) at the device.
- Transmit in loop (continuous)
- The Size must be the smallest possible, because the device needs to be inserted into a piece of clothing. Size reasonable to be able to enter an example into a pocket
- Autonomy is also important - because it will be necessary to transmit music at least for 2h or 3hours
- Must have on/off option
- The sound volume can be the same - Or Up/Down if it is possible.

- Have to be a small device to transmit music to be inserted in a clothe

Can you please to help me develop this.

Best Regards
Bruno
 

Transmit music? A cell phone does not transmit music, instead a radio station has a transmitter that is made to transmit music. A cell phone PLAYS music into its speaker, is that what you want, something small that plays music? And you want it to play one song in a loop over and over?

Something small that makes sounds produces only high pitched squeaks, not wideband music. A speaker 2" or 3" in diameter in a box about 3" cubed (will not fit in a pocket) plays squeaky music with no bass sounds, like a cell phone.
For it to play loudly for 3 or 4 hours then its battery must be pretty big or recharged often.

I think you want an MP3 player that has a built-in speaker but if it is small it will have a squeaker, not a speaker.
 

with the assumption that , you mean 'transmit' as 'play' , do you want to make yourself the device or find out what is readily available?
 

Hello srizbf

Yes you're right - Play music. ( sometimes we translate like we said in our language)

I want to consider all possibilities I have.

which devices are already available ?




If it possible and availab
 

I looked in Google Images for Small MP3 player With Speaker and hundreds are shown but most are not available anymore. The few that are still available have reviews but the sound quality is not mentioned.
We do not know what is available where ever you live and we do not know what kind of music is played there. Why don't you ask in your own language in a forum in your country what is available there?
 

At first you wanted something to play music when hidden in clothing. Now you want a cheap little child's toy?
 

its not a cheap toy.

I said : "Something like this could work"

I just want a solution. I'm trying to found it, in every possible way.
Im not an expert in this area.

Thanks
 

You must tell us exactly what frequency response, amount of distortion and output level you want the thing to play. Or listen to the awful sounds from the cheap child's toy then tell us it is no good and why.
 

yes I need some quality.

As I said like a cellphone its is good.
I dont know technical details like what frequency response, amount of distortion and output level
 

I do not know where to buy the special thin speaker used in a cell phone. Oh, since you say the sound from a cell phone is good then do you want the sound to come from earphones?
 

Audioguru, thanks for your help.

Well, its like when you put it in speakloud, of course

Thanks
 

The squeaky little speaker on a cell phone is used to play its ring tone for a moment, not to play music for hours. Maybe your "music" has no bass sounds?
 

The smartphones plays music
 

Most people in North America and Europe DO NOT use the speaker in a smart phone to play music, as it says here:
"But what is the best smartphone to enjoy music on the go? It depends, some may say. Do you listen to music straight from your phone? If so, you’d need top-notch speakers with clean and loud audio. Do you hook up your phone to your stereo system at home, or to your car? If so, you’d need a device that has a strong output from the 3.5mm mic jack. Or finally, do you prefer to listen via headphones? If so, you’d want not just the strong output, but also some quality earbuds right in the box.
Read more at https://www.phonearena.com/news/Best-smartphones-for-music_id56292#L2B0LFwyEJI7ziff.99 "
 

the speaker from the smartphone.

I need some device to play music like the speaker of a smartphone when it plays loud
 

But nobody (in the West) listens to loud music when played on a tiny speaker that fits in a pocket. They use earphones.
You might find a small recorder/player that plays speech on its tiny speaker.
 

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