25 watt piezo dynamic megaphone with built-in siren & hand-held mic mg electronics 25 watt piezo dynamic megaphone is a lightweight and energy efficient megaphone with ultra loud voice. Piezo dynamic technology is a revolutionary techinque that allows a megaphone to operate more efficiently and with less weight than ever before. Lasts 16 hours continuously on 8 "c" cells. Includes adjustable shoulder strap. features: power: 25 watts size: 14" long x 9" bell diameter range: up to 1 mile batteries: 8 "c" cells (not included) 3 modes: talk mode, whistle mode & siren mode net weight: 2.75 lbs (without batteries)
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