SeaSense AIR HORN for Boating, Sports, Safety, Parties, Life Guards, Officials, or Hiking Large Size 3.5oz Refills Available SeaSense uses the safest cans with safety release points to prevent damage. Removable tops that feature easy "push button" for quick sounding, strong diaphragm that produces the proper sound every time, and a trumpet body that is impact resistant, weather resistant and designed specifically to amplify the safety signal. Can be heard up to 1 mile away! * Meets EPA & USCG standards * Made in the USA * Great for boating, kayaking, sports officials, coaches, and referees etc. * 127 db