DBLDBL Whistle

DBLDBL Whistles

These two-note whistles create not one sound, but two. Two notes high. Two notes low. I call them DOUBLE DOUBLE. Blow while putting two fingers over the Apito-like SIDE PORTS results in low notes. PORTS OPEN is high notes. Neat sound. And, different.

The sounds a DOUBLE DOUBLE Whistles makes is sharp, resonant, loud and distinctive. Distinct sounds make it possible to use whistles to communicate with group members in a chaotic, crowded, noisy environment. In these situations you’re not alone. These whistles stand out. And, that's just the point. Use sound as a signal. An aural messaging system for those in the know. Yes, there's more. Signal whistles coming soon.

Other Whistles

Too many whistles and many more on the way.  I'm going with the flow for now. Want to 3D print whistles? See all my whistle designs in the WHISTLE WORKS collection... https://www.thingiverse.com/timcel/collections/43888798/things

The bottom of this description has links to other relevant de