Specifications Package includes: 6 pcs survival whistles with lanyard Use: Camping, Hiking, Boating, Hunting and many other emergency1.SPECIAL DESIGN - Survival whistles are designed with a clip for securing on your belt or life jacket. With two defferent sizes sound cavities, each whistle can produce high and low frequency sounds, and ensure excellent penetration in different environments and conditions.2.APPLICATION - Ideal for Camping, Hiking, Boating, Hunting and many other emergency. Keeping a survival whistle may save your life in emergency situations.3.MATERIAL - Made from high impact plastic, lightweight, waterproof and durable.4.Extra part- Each whistle is matched with one neck lanyard, which is convenient to put on the neck in some situations.5.WHAT YOU GET - 6 pcs survival whistles with lanyard.