Ultra-Loud. Ultra-Light. Ultra-Tough.
This titanium dual-tube survival whistle from Boundless Voyage is your essential safety companion for any outdoor adventure. Delivering a piercing 120dB sound, featuring a pea-less extended cavity design, and crafted from high-temperature crystallized titanium, it's the reliable signal device you need when it matters most.
✨ Why You'll Love It
Ultra-Lightweight – Only 8.1g
Weighs only 8.1g — lightweight and portable. Hang it on a backpack, keychain, or around your neck with the sturdy woven rope. Whether hiking, camping, boating, or preparing for emergencies, this whistle provides reliable safety whenever you need it.
120dB Dual-Tube Sound – Loud & Clear
Unique two-sound-chamber design — requires only a light blow to produce a loud, attention-grabbing sound up to about 120dB. Loud enough to call for help from a long distance. Works great as a signal whistle.
Pea-less Extended Cavity – Works in Any Condition
No built-in pea — no moving parts, nothing to obstruct sound, nothing to jam. Excellent airflow in any conditions. The extended cavity structure produces a louder volume that transmits further than ordinary short whistles. Double tubes sound simultaneously — high-frequency, loud, and not harsh.
Portable Safety Whistle – Hands-Free
Easy to release your hands — loop through backpacks, camp gear, bikes, life jackets, kayaks, paddle boards, and sailboats. Versatile for all outdoor activities.
High-Temperature Crystallized Titanium – Durable & Beautiful
Built from lightweight yet ultra-tough titanium — withstands heavy outdoor use without rusting, bending, or breaking. High-temperature crystallization treatment creates a beautiful finish with better anti-oxidation ability. Withstands a variety of complex environments.
📋 Product Specifications
| Brand |
Boundless Voyage |
| Model |
Ti9029O |
| Material |
TA1 Titanium |
| Dimensions |
4 × 1.2 × 0.6 cm |
| Net Weight |
~8.1 g |
| Weight with Lanyard |
~10.1 g |
| Sound Volume |
~120 dB |
| Design |
Dual-Tube, Pea-less, Extended Cavity |
| Finish |
High-Temperature Crystallized |
| Includes |
Sturdy Woven Rope Lanyard |
| Origin |
China |
Measurements are manual and may vary slightly.
❓ Quick FAQs
1. How loud is the whistle?
~120dB — loud enough to call for help from a long distance.
2. Does the whistle work in wet conditions?
Yes. Pea-less design with no moving parts — works in any condition with excellent airflow.
3. How much does the whistle weigh?
Only 8.1g net — ultra-light and easy to carry. 10.1g with lanyard.
4. Is the whistle durable?
Yes. Made from ultra-tough titanium — withstands heavy outdoor use without rusting, bending, or breaking.
5. What makes this whistle different from ordinary whistles?
Extended cavity design produces louder volume and transmits further. High-temperature crystallized finish for beauty and anti-oxidation.
