The Supreme Ka-Bar Emergency Whistle Keychain combines tactical functionality with iconic streetwear style. This compact black whistle delivers a piercing 120dB sound, perfect for emergencies, outdoor adventures, or everyday carry. Built with durable materials and a convenient keychain attachment, it's designed to be heard from up to a mile away. Whether you're hiking, camping, or navigating urban environments, this whistle ensures you can signal for help instantly. A practical essential that merges survival gear with contemporary design.