How can I listen to music on iPod Touch 6th Gen without being Plugged In?

I have a 6th gen iPod touch. Is there a way to use Siri without having to have it connected to power? I'd like to be able to carry it everywhere and not have to physically take it into my hands to listen to music and switch to other playlists. Yes I could use a power bank and carry that around too but I'd rather not. Thanks

[Re-Titled by Moderator]