Product name:Whistle<br> Product size about : 5.7*1.8cm/2.2*0.7in<br> Product color: As shown in the figure<br> Product material:Stainless steel<br> product features:<br> 1. This dual-frequency high-frequency stainless steel whistle has a survival emergency function, which can send out high-frequency signals for help in outdoor emergencies.<br> 2. The design is exquisite, the product size is small and easy to carry, and it can be easily hung on a keychain or a backpack, ready for use anytime and anywhere.<br> 3. Made of stainless steel Sturdyof, ensuring normal use in various harsh environments.<br> 4. The product has a dual-frequency function. In addition to the high-frequency distress signal, there are other functional modes to choose from to meet different emergency needs.<br> 5. The whistle is clear and loud, and can transmit signals over long distances, helping you get help faster in the wild or outdoor emergencies.<br> Precautions:<br> 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images.<br> 2. If you feel difficult to choose the size, you can contact us at any time. We will give you some suggestions, but for your reference only.<br> Shipment includes:<br> 1 pc Whistle<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store