How much money is an old Nintendo DS worth?

Hey guys I wanted to sell my Nintendo DS but I wanted to inquire beforehand how much it could still be worth you know maybe how much it could still be worth it is an old Nintendo DS unfortunately without accessories

I got the last one for 20 euro on ebay

20 euro or so

Is nothing worth it.

In what state? Fully functional? I would say that a fully functional NDS in good condition is worth around 10-15 euro.

I would also say fully functional up to 20 euro and fully functional with original packaging around 40 euro