How do I charge my RCA perl - RCA TH1101 MP3 Player

I h ave searched and found this and reviewed it. However, I cannot pin point the exact specs for this model. This is what I have reviewed http://www.voxxsupport.com/images/manuals/TH1100/media/TH1100_UMEN.pdf
While reviewing this information I noticed that it did not say anything about the ability to charge a battery, but it did say to only charge rechargeable batteries. With this information I conclude that this unit doesn't have the capability to charge batteries. Unless the unit came with a rechargeable battery. In this case plug the unit in to your computer and leave it plugged in for 6 hours and see if this solves the problem Thanks, Cody