Ongekimei

Ongekimei (音撃鳴) A device that attaches on a Trumpet-type Oni's belt. The Oni attache it to the front of trumpet after attaching the mouth piece. It forms a horn for the trumpet to use for their Ongeki Sha finishers.

Ongekimei - Narukaze
Ongekimei - Narukaze (音撃鳴・鳴風): Ibuki attaches this to the front of his trumpet after attaching the mouth piece. It forms a horn for the trumpet to use for his Ongeki Sha Shippuu Issen. Hibiki used it once, when Ibuki need Hibiki's Ongekikou for his "Orochi sealing" training.