Signal Whistle - Orange *10-PackThe signal whistle&';s sound can travel further than a human voice and other noises even if the perceived level of volume is similar. Using a whistle requires much less energy than yelling or other means of signaling for rescue in an emergency situation.Features: Same whistle that is included with many MTI models All-weather marine grade whistle Meets USCG requirements for a signal device No metal or moving parts to break or corrode Built-in clip and lanyard hole for tying cord to life jacket *Sold as a PackWARNING: This product can expose you to chemicals including ANTIMONY OXIDE (ANTIMONY TRIOXIDE),N,N-Dimethylformamide which are known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov. Specifications: Type: Parts Box Dimensions: 1"H x 4"W x 6"L WT: 0.5 lbs UPC: 762894036007