The Coghlan’s Emergency Survival Horn is very loud! It operates with the simplicity of a mouth horn and blasts out audible sound up to 120dB. The membrane can be easily replaced with any thin flexible film. Comes with SOS printed on the body and a black break-away lanyard.

• Features a stone and twig guard to protect the rubber membrane and comes with a break-away lanyard.
• Durable polypropylene construction floats and is easily seen with the blaze orange color

Instructions for use: 

Blow into the small hole located on the side of the horn. The blast of sound will exit through the back of the horn through the dual chamber horn.