I am looking to get a battery bank for my gear so I can enjoy my music longer when I'm out and about. Does anyone use one already that works well for them? Thanks.

This will hopefully be a thread for people to share what they are listening to while enjoying a sunrise or sunset. It is something I like to do, and I hope I can get others to as well. Keep the posts to two a day (Sunrise and Sunset), and share what you're listening to, as well as a picture of...

Just trying to understand something I know little about. So ignore my ignorance. How does Impedance work? Why do some amps have higher Impedance, as well as headphones? Also, how do you "power match" your headphones/Iems to your amp? Thank you