101Leafy researched the games.
Khezu Flute

Made to look like the mouth of a dreadful Khezu. Shape and tone are unforgettable.
| Class | Hunting Horn |
|---|---|
| Rarity | 6 |
| Attack | 884 |
| Thunder | 480 |
| Slots | 3 |
| Price | 30,000z |
Upgrades
| Upgraded from | Khezu Horn+ |
|---|
Upgrade tree from モンスターハンターポータブル 2nd G 公式ガイドブック (Enterbrain, 2008), page 738.