If you have the legal access link, here is the best way to make your audio "portable" and study-friendly:

Official audio for is primarily provided via the physical CD included with the book, but portable digital versions can be accessed through several official and community channels. Official Digital Access

Ask Publishing hosts the complete MP3 audio library for the Sou Matome series on their official website.

With this guide, you are now equipped to turn your study sessions into a truly portable, audio‑rich experience. Good luck with your JLPT N4 preparation—and happy listening!

Ask Publishing’s (音ナビ) app is the official solution. Available on iOS and Android:

But there’s one golden phrase that unlocks true, flexible study:

provides generic JLPT N4 MP3 sound files that can supplement your studies. Internet Archive

When users search for "Portable Audio," they are usually looking for:

offer free vocabulary lists and accompanying MP3 sound files recorded by native speakers, which complement the Sou Matome material. Study Communities: Platforms such as

: If you have the physical book, it likely includes a CD. Since many modern laptops lack CD drives, using the official Ask Publishing download link

Simply listening passively while walking will not yield the best results. Use these targeted strategies to maximize your portable study sessions:

This method is highly effective for N4 because it bridges the gap between grammar knowledge and actual communication skills.

Simply listening passively to Japanese audio while scrolling through social media will not yield optimal results. Active listening techniques maximize your time on the go. Active Listening During Commutes

Nihongo Sou Matome (meaning "summary" or "complete") is a fast-paced, 6-week study program designed to help learners master the skills required for the Japanese Language Proficiency Test (JLPT) N4 level. It is highly regarded for its: