Features: 100% Brand New and High Quality A great Compact EmergencyWhistle Ideal For Camping, Hiking, Mountain Climbing Or Outdoor Sports Mountain Rescue Services Advise That The Recognised International Distress Signal Is 6 Loud Blasts On a Whistle At One Minute Intervals Small and compact Detachable Neck Lanyard Specification: Whistle Length: 6.7cm Weight: 40g Suitable for: SOS and Early Warning: For outdoor adventures, women, children,tour pal and maritime rescue Warning, Command: For the traffic for police, security guards and vehicle dispatching management, etc Outdoor Contact: (You could make flute voice coded before you go out with your partner and then contact your partner in long distance. )suitable for outdoor sports Competitive Matches: Suitable for all kinds of sports games You also could create others use. Pakage included: 1x Silver For Police Metal Whistle 1x Lanyard 1x Plastic Box