Acme 577 Thunderer features an large chamber with a high quality cork pea. low pitch 115dBA. The 577 Thunderer is suited to large sports grounds as the deep note will travel for extreemly long distances even with high background noise. Also features a fully adjustable brass fingergrip.

115dBA
Blow rate required 4
Blow sound 2
Blow tone 5

Product Code: H2ACME577