Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Intend to use it in a office all day long to provide background music.  Can it be plugged in and run all day off a SD disk?  What is the max capacity.
Document: Much smaller than I thought from the picture - about 6 or 7 inches. Very easy to set up and I use it for white noise and meditation - I have not made it boom so I have no idea if it does that but I love it for what I use it for - it also came with a nifty USB LED light which I use in my laptop
The only reason this got 4 stars is because of the radio reception. They need to add an antena to help with the radio. The concept is great and it works very well. The battery has a long life so far.
of chargewell done customer serviceThanks FRLTHOMAS
nothing comes with instructions! I'm trying to figure out how to program the radio, and it would be easier with some instructiosn.
No this product didn't meet my expectations because they weren't really loud, as i was expected it to be. :(
Great for boat
Answer: can be plugged in and then play radio all day or can play mp3 files from a drive connected to USB port such as a flashdrive.