These two rectangle shaped pieces are emitter and receiver of music.The voice is clear , the transmission is nice and clean!!! I hope you like the peacefull design!!!
this systeme doesn't require any kind of alimentation works only with music's "power"
- On the emitter:
there is L+R connectors so you hav to use an adaptator to use it on female jack devices.Let's go with this one for example:


- On the receiver:
A universal music jacks works on speakers headphones....

compatible devices (which I tried) :
- a big portable PC.

- a mini portable PC

- Tablets

- phones

- MP5/4/3

- Radios

one more pic :

If you want plug an amp next to th emitter and you will get 2 meters transmition distance!!
Or plug an amp next to the emitter and another one next to the receiver then you will hear the music in a hole appartment clearly.
DIY
you need two small coils,two L and R colored Jacks and one music jack.
Here is the schematic

You can make a minimized version of this device instead of buying bluetooth headphones.
Thank you for coming by :D !!!
