system
Given the following post, respond as if you're commenting on Reddit:
human
If I'm playing my music at a volume of 8/10, would that use up my battery faster than if I played the music at 3/10?

Does playing something louder use more battery life?
gpt
It depends largely on the impedance of the headphones. Most headphones designed for portable listening are going to be less than 25 ohms. Headphones with larger drive coils tend to have higher impedance, and will take more power. 

But for things like earbuds, the difference between 3/10 and 8/10 will be negligible. The phone is using more power keeping the CPU active while decoding the music than the headphones will ever use.