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Review on ๐ŸŽบ GFB Whistling Trumpet: Versatile Valve Accessory for All Instruments by Robert Yates

Revainrating 5 out of 5

Sounds cool! on spares

Works great on my GFB T9525, Deceptor Pro II. Exhaust valve. Sounds cool. Many people comment that they like the new sound.

Pros
  • cool product
Cons
  • old