Virole

[…] except when he has a hood, bells, virols, or rings, and leashes, in which case he is said to be hooded, belled, jessed, and leashed; […]

The Florentine GUICCIARDINI bore : Azure, three hunting-horns argent, the mouth-pieces and viroles or, banded gules. Gules, three trumpets fessways in pale argent, is the canting coat of CALL (Baronets).

Viroled- (vi-rold') Furnished with a virole or viroles. Said of a bugle or horn when borne with rings of a different tincture from the bugle itself.