Tracklist
| 1 | 扉 | 4:50 |
| 2 | 運命複雑骨折 | 4:12 |
| 3 | コバルトブルー | 4:26 |
| 4 | 墓石フィーバー | 4:06 |
| 5 | 夢の花 | 4:36 |
| 6 | 旅人 | 4:48 |
| 7 | パッパラ | 3:45 |
| 8 | 上海狂騒曲 | 3:44 |
| 9 | ヘッドフォンチルドレン | 5:57 |
| 10 | キズナソング | 6:00 |
| 11 | 奇跡 | 5:26 |
Notes
4th "major" label album."Romanised" song titles
1) tobira
2) unmei fukuzatsu kossetsu
3) kobarutoburū (Cobalt Blue)
4) boseki fībā
5) yume no hana
6) tabibito
7) pappara
8) Shanhai kyōsō kyoku
9) heddofonchirudoren (Headphone Children)
10) kizunasongu (Kizuna Song)
11) kiseki
Other versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| VIZL-133 | The BACK HORN | Headphone Children (CD, Album + DVD-V, NTSC + Album, Ltd) | Speedstar | VIZL-133 | Japan | 2005 |
| VICL-62950 | The BACK HORN | Headphone Children (CD, Album, RE) | Speedstar | VICL-62950 | Japan | 2008 |
