You hope you’ll never really need it, but if you do, you’ll be glad you’ve got this ultralight 3D-printed emergency whistle along. At just 1 gram and barely bigger than a paperclip, you won’t even notice it’s there.
Loop it onto a jacket zip, the shoulder strap of your pack, or just your keys. Despite the tiny size it puts out a hard, shrill sound, loud enough to grab attention in an emergency, or just to call back a mate who’s wandered too far ahead again (you know the one). Mind your own ears though (and your housemates’ and pets’) when you try it out.
When I first tested it I was honestly surprised how loud this tiny thing is. So light you forget you’re carrying it, but blow it and everyone nearby knows you’re there. If you want a whistle that lasts a lifetime, we also have a titanium emergency whistle.
This emergency whistle is ideal for:
- Signalling for help after a breakdown or accident
- As a ‘bear whistle’ or to make yourself known in dense woods
- A subtle but effective addition to your EDC (everyday carry) kit
3D UL emergency whistle specifications
- Weight: ~1 gram
- Dimensions: 40 x 6 x 5 mm
- Material: 3D-printed biodegradable plastic
- Extremely loud despite the mini size (+90 dB according to the iPhone app)
A simple but effective bit of kit you can carry everywhere: ultralight, minimalist and surprisingly effective.






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