Survival Whistle

This whistle is printed in place with little to no post processing required. It can reach up to 115db (V4) at a distance of 150cm (59 inches), perfect for sports or camping. Print instructions Recommended Settings: Material: PETG Layer Height: 0.15mm Infill: Gyroid, 15% Scale: 100%     Print with the V4 / V5 logo on the bed for best results V4: Old version - Difficult to blow V5: New version - Much easier to blow and louder