The Battle Trumpet (バトル トランペット Batoru toranpetto?) is an object that appears in Sonic Boom: Rise of Lyric. It is a trumpet-like device that releases sonic waves and is one of the weapons that can be used against enemies in gameplay.
The Battle Trumpet can be found at fixed points throughout the game. When used, its attacks infiltrate the surroundings all at once, damaging all enemies in the vicinity.