Part of the "fun" of being bipolar are the auditory hallucinations. I don't have them all the time, but it can be difficult to navigate life when I do.
If you've ever truly wondered what auditory hallucinations sound like, this is a fairly accurate (in my experience) representation. Be forewarned, this is potentially unsettling to listen to and the audio kicks right in. Wear headphones for maximum effect.
(Thanks for the link, Melissa S. Cohen.)