Connecting two separate portable speakers to a smartphone

[Daniuha]

Hello
I have an idea to make a portable stereo system.
The main idea is, that you can connect more than one speaker to your phone or some kind of transmitter and then connect a phone to transmitter. I'm not looking for an already made solution that would connect to common portable speakers. I want to made all system by my self. So what would be the best way to do it?
Now, I am thinking about connecting my phone via Bluetooth to separate receiver/transmitter and after that, connecting receiver/transmitter to 1 or more speakers (WiFi or something else)
Thanks in advance
P.S. I'm a new to this kind of things, so could you explain your ideas in a simple way
P.S.S. Sorry for my grammar mistakes, I am only studying English

 

[americanaudiophile]

Your phone may already have a bluetooth transmitter built in so it could be paired with a car infotainment system for instance. But the problem there is that you would only be able to pair with one receiver at a time.
You could build a receiver into one of the speakers, put a stereo amplifier in one and run a wire to the other. You can get modules to build into the speakers.
http/www.parts-express.com/Search.aspx?keyword=bluetooth%20reciever&sitesearch=true
http/www.parts-express.com/search.aspx?N=4294967118+4294966022&Nrs=collection%28%29%2Frecord%5Bendeca%3Amatches%28.%2C%22P_PortalID%22%2C%221%22%29+and+endeca%3Amatches%28.%2C%22P_Searchable%22%2C%221%22%29%5D&Ntt=amplifier*+boards*&PortalID=1
You could also connect a BT transmitter to the headphone out of the phone. They do make some that will pair with more than one device.
http/www.avantree.com/product-bluetooth-audio-transmitter-avantree-priva-1062.html

 

[americanaudiophile]

Your phone may already have a bluetooth transmitter built in so it could be paired with a car infotainment system for instance. But the problem there is that you would only be able to pair with one receiver at a time.
You could build a receiver into one of the speakers, put a stereo amplifier in one and run a wire to the other. You can get modules to build into the speakers.
http/www.parts-express.com/Search.aspx?keyword=bluetooth%20reciever&sitesearch=true
http/www.parts-express.com/search.aspx?N=4294967118+4294966022&Nrs=collection%28%29%2Frecord%5Bendeca%3Amatches%28.%2C%22P_PortalID%22%2C%221%22%29+and+endeca%3Amatches%28.%2C%22P_Searchable%22%2C%221%22%29%5D&Ntt=amplifier*+boards*&PortalID=1
You could also connect a BT transmitter to the headphone out of the phone. They do make some that will pair with more than one device.
http/www.avantree.com/product-bluetooth-audio-transmitter-avantree-priva-1062.html

 

[Daniuha]

It isn't really what I am looking for. The main point about this idea is that you can connect two separate speakers to smartphone.
Maybe I could connect smartphone via BT to separate box and after that spread a signal via wifi to the speakers. I hope, I've explained my idea correctly