This is Captain Wanwan Rescue's whistle. It emits an easily audible 3,000Hz sound, useful for crime prevention and SOS signals during disasters. With a cute Shiba Inu design, it's also recommended for children. It's a new, unopened item, but please understand that it has been stored at home before purchasing. [Product Condition] New [Color] Yellow系 (Yellow-based) [Other] Crime prevention, disaster SOS, 3000Hz Thank you.