Nitecore NWE10 Electronic Outdoor Whistle Green. With the press of a button it produces a powerful 126 dB audible signal to help you communicate your location across trails forests valleys and other challenging outdoor environments. Unlike a traditional whistle that requires repeated blowing the NWE10 lets you signal without constantly using your breath and energy. SOS mode automatically repeats a distress signal approximately every three minutes while BEACON mode provides continuous beeping for location marking. Whether you're separated from your group navigating low visibility or calling for help the NWE10 provides an easy way to make your position heard. Built for extended outdoor use the NWE10 provides up to 80 hours of runtime in both SOS and BEACON modes and features convenient USB-C recharging. It can even continue operating while connected to an external power source for extended signaling when needed. At just 1.69 oz it's easy to add to your outdoor gear without unnecessary weight. The NWE10 is built for demanding conditions with operation down to -40F (-40C) IPX7 water resistance and 1-meter impact resistance. An included OUTDOCK mounting bracket works with backpack straps webbing and MOLLE systems while the built-in clip and lanyard hole provide additional ways to keep the whistle secure accessible and ready when you need it. Specifications for Nitecore NWE10 Electronic Outdoor Whistle: Manufacturer: Nitecore Weight: 38 g Age Group: Adults Features of Nitecore NWE10 Electronic Outdoor Whistle Produces loud 126db audible signal Features a SOS and Beacon mode Battery lasts up to 80 hours and is rechargeable via USB-C port Package Contents: Nitecore NWE10 Electronic Outdoor Whistle Nitecore Nwe10 Usb-C To Usb-C Charging Cable Outdock Bracket Nitecore NWE10-GN: NWE10 Electronic Outdoor Whistle Green