Headphones
They are good for listening to things like audio and music and other sounds.

learn more

TSI: Boost
It boosts things like your brain and other superpowers like X-Ray vision or laser eyes in sharks.

learn even more

TSI: Focused Attention 2
Gives you lots more stuff to listen to. Things read by a guy from England and people from India, along with many Americans. There may be a Canadian but I'm not sure.

get some!