Here is a link to some usb powered sound sensitive lights:https://www.amazon.com/gp/product/B0814DL48V/ref=ox_sc_act_title_1?smid=A50GIYZM3VDN6&psc=1

This allows your cloud lamp to be powered by a usb battery so you don't have an ugly power cord coming out of it and you can move it around easier. I went with this option as I'm going to take my cloud lamp out camping.

Edit: here is a link to a small usb battery that should work with it as well.