"This book contains beautiful illustrations and reviews of the latest headphones.
It will help find the perfect headphones for you.
Exclusive interviews of famous composer included.
Enjoy the luxury of viewing our fascinating illustrations."

List of artists and headphone links: http://www.lmrc.be/2009/06/639/

Replacing https://e-hentai.org/g/321181/4fb43224f4/
reason: higher res images

Pic 19: Headphones so good they're garunteed to blow the clothes right off your body.

Base +6, kikimaru024 +10, Kinsei +8, ☆Loli Police☆ +14, wutweeaboo +4

Yup. It's all about teh headphones. Uh huh, Sure it is :)

Base +6, kikimaru024 +10, ☆Loli Police☆ +14, wutweeaboo +4

A more modern headphone girls doujinshi book was completed and translated into English in 2014. It's name is "2013 Moe Headphones Design Doujin" by Lunatic Joker. It was successfully crowdfunded and printed in 2014. More info along with sample pictures are at:
https://www.kickstarter.com/projects/sekaiproject/2013-moe-headphones-design-by-lunatic-joker/video_share

The crowdfunding project is organized by Sekai Project which has a lot of successful translation projects under its wing including visual novels.

Base +11, kikimaru024 +18

(画集) [学研出版 (よろず)] ヘッドフォン少女画報

Base +6