My Ihome will not keep a charge

Hello,

I have an iHome, not sure of the model number, but it is wavy and changes colors. I absolutely love it. It makes me happy :) However, it is not keeping a charge and it will not stay on when I turn it on and it shuts off when someone walks in from of it. Is there a battery that I can replace? Would you know what the problem is and how to fix it.

Kate Moreland - kate@ceresville.com