Price performance super. Have never heard of such a small part of such a good sound. Please do not compare with an umpteen hundred euros investment. But everywhere I put down these cubes was great enthusiasm. Only downside is you can not select the title (but if title jump is played by the chip's more, if you press longer to get in next directory. But you can also plug it a cell phone and has good sound. From me 5 stars for product and delivery.