Piezo Dynamic Megaphone w/ Detachable Mic, Siren & Whistle - 1760 Yard Range Earthquake Kits like most of our survival

like most of our survival supplies

as they must be ignited with an open flame and are protected within the folded stove

Unlike MRE's

Flame retardant

Piezo Dynamic Megaphone w/ Detachable Mic, Siren & Whistle - 1760 Yard Range Earthquake Kits like most of our survivalLightweight, energy efficient and ultra Loud, Piezo Dynamic Technology is a revolutionary technique provides higher efficiently with less weight than ever before. Piezo Dynamic Technology utilizes full sized diaphragms and ceramic wafers to create the full frequency response and loudness of voice coil speakers, without the use of heavy, cumbersome magnets as in conventional megaphones, significantly reducing weight and current draw. Use as a