It's exactly what it seems to be

A really really cheap ultra compact mixer. Don't expect it to be high quality, but for the money you pay you get a neat little unit. I've been using it to send multiple instruments/vocals through a series of pedals. Earlier on I've been using a regular sized 4 xlr channel mixer and boy this thing have helped me a lot! It's like one fifth of the size and weight of the old one. Makes gigging way easier. It even saved our asses one time when we could only use a single amp to rehearse- luckily I had this in my bag and we were able to get all the guitars amplified. I usually carry it around with me for gigging just in case some smaller venue might have technical problems or something. It's a really good safety net. The size of a regular effect pedal.

I can only recommend it!