Review on Xiwai Type C USB-C Female Input To DC 4 by Shawn Parker

I bought this to charge my JBL Xtreme2 portable speaker which requires a 20V input via a 5.5/2.5 plug. This allows me to charge the speaker with a USB-C laptop charger, which is much smaller and more portable than the one that came with the speaker. I hate keeping tabs on proprietary charging cables and packing/carrying them around, so this little adapter has practically eliminated a bulky, non-universal charging cable from my life. It'll be great if things eventually move to USB-C, but until then, I'll keep adapters like this in mind for any other devices that came with non-universal charging cables. I would like to add that the product I received did not contain any text (although the product images do). I'll probably use a drawing pen to write "20V".