✈️ Release Date :  April 8, 2026

hrtz.wav 1ST MINI ALBUM The First Wave

* Album Specifications
- OUT SLEEVE: 190*140(mm) / 1 type (different images by version)
- BOOKLET: 190×140 (mm) / 104p / 1 type (different images by version)
- CD-R: 120*120 (mm) / 1 type (different images by version)
- ENVELOPE: 130*130 (mm) / 1 type (different images by version)
- STICKER: 120*170 (mm) / Insert 1 type (different images by version)
- LYRIC POSTER: 375*275(mm) / 1 type insert (different images by version)
- PHOTO CARD: 55*85 (mm) / Insert 2 random types out of 10 types (different images by version)
- UNIT PHOTO CARD: 55*85 (mm) / Insert random 1 out of 5 types (different images by version)
- GROUP PHOTO CARD: 55*85 (mm) / Insert random one out of two (different images by version)
- POLAROID: 85*100 (mm) / 5 types (1 SET) insertion (different images by version)