The enclosed instructions for setup are nearly worthless. I've spent an entire day trying to decipher the instructions, and STILL haven't made the thing work. After searching online, I realized it had to be registered (nothing in the enclosed paperwork suggested how to do that, let alone that it was necessary before using the product!). When I (finally) logged onto Sony's site to register, it required a serial number which wasn't labeled. The printing on the speaker is black-on-black, which is impossible to see unless you have 20-15 vision and read it in strong light. The only "instructions" included say to download the "SongPal" app on your phone, but that doesn't do anything until the speaker is registered. There are no descriptions of what any of the various "buttons" are for or how they work. The 2 stars are a gift. Simple instructions would probably help this device receive 5 stars if it works as well at home as it did in the store, but I still haven't been able to make this things work.