Musical tastes are different. Most headphones are the same. This is a problem: one Axel Modular Headphones aims to fix. When ordering, you can choose from three different driver configurations, set up for dance/hip-hop, jazz, classical, and folk, or pop and rock, respectively, and there's even an online app that mines your Spotify preferences to recommend one for you. From there, you choose from one of three band inserts, whether you want on-ear or over-the-ear cans, and your color preference — then prepare to listen to your favorites on a set of personal speakers tailored to your liking.