Kokoro ga Sakebitagatterunda. x Sony Hi-Res "Walkman" and Headphone  

Kokosake x Sony, Anthem of the Heart x Sony, 心が叫びたがってるんだ。×ソニー製ハイレゾ対応「ウォークマン®」＆ヘッドホン

A clip showcasing cooperation between the Sony Walkman and earphones was first unveiled at Anime Japan 2016 and then released online for viewers to enjoy.

The special premiered at Anime Japan 2016 and was later made available online.