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Quantity
1
The manufacturers claim a 50% reduction in volume by using shaped sponge-like inserts for the bell, neck & mouthpiece. The sponge allows the air to pass through but there is additional resistance when blowing - good for diaphragm devel...
Reviews
4.0
3 ratings
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Ordered before Christmas. Didn't arrive till February and took some chasing. Product itself is good but service left something to be desired.
H
Huw · March 4, 2026
Exactly as described and takes the edge off the volume
