Mini 2.5 inch MP3 to be controlled by a mini remote control

I have a mini mp3 player and I need to be able to change the tracks by way of a mini remote control. I know there are several possible solutions: 1. Use the Ipod nano and connect it to speakers that have a remote control inbuilt like the gear4 product for example. That's too expensive, over a €100 to buy. 2. Connect some sort of antenna to the mini mp3 and buy a compatible remote control. I suppose the mp3 would have to be in sync with the remote control. Problem. I dont know if this exists? 3. Buy an mp3 that comes with a remote control. 4. Install inside the mp3 a receiver that the remote control picks up the signal and therefore can change the tracks? I need a solution that's inexpensive and simple and keeping everything not nano but mini. I am sending a photo of what I have. I am paying for the solution or even for the product if it exists?