3D Print Rite Item Description The whistle actually has two slightly different tones produced at the same time by separate chambers on either side. The two different tones alternate between amplifying and canceling each other out. This variation creates the shrill sound that is more attention grabbing and does not get lost as easily over background noise to get you noticed in all conditions unlike a single tone whistle. The whistle has been tested at over 118db and will increase its volume the harder you blow. There are no moving parts to jam so someone with a stronger lung capacity may reach louder levels without the risk of something jamming. Size - 1.0 x 0.5 x 2.5 (H,W,L) Weight - 0.5 oz Disclaimer About 3D Prints We strive to make sure the detail is as close to perfect as can be for a 3D print, but as with all 3D Printing there can be minor blemishes, rolls, lines, and in the case of multiple parts, lines where the parts are glued together. We will not ship any sub-par product and we will inspect the product to make sure it's the best it can be. If you are not happy with the product, please let us know right away. When reviewing our store or product please consider it is a 3D Print and it will not be in perfect condition as described above. All our 3d Printed products are made using PLA which is a non-toxic plant-based material that is 100% biodegradable. 3D Printed items, especially articulated toys that have small moving parts can be a choking hazard to small children. Please supervise to ensure safety. We did not design this item. It is listed on Thingiverse under an “Attribution License” and open for public use. We are just the printer! Shipping & Fees All products are printed right after the order is received by us. Shipping will usually happen within 24 to 30 hours. All products are carefully wrapped and placed either in a shipping box or a bubble mailer or both depending. Shipping is auto-calculated by eBay. We will ship to your eBay address, so please make sure your address on your account is correct. We accept all eBay accepted forms of payment. Please contact us if you have any questions! We are a small family owned and operated business in Sunny South Florida and we are grateful for your business! Copyright 2023 - 3D PrintRite, LLC - All Rights Reserved Find Us On The Web: www.3dprintrite.com