The Galls StreetThunder Handheld Megaphone is ideal for public address, crowd management or any scenario that warrants portable handheld warning. Combines 25W of power with a 115 dB siren to deliver one of the best tools in scene control. Simply press the trigger and speak for more than 900 ft of distinct voice projection. The Galls StreetThunder Megaphone comes with sturdy plastic construction to withstand years of use. Comfortable pistol grip with press-to-talk switch — as well as a revolver switch for selecting sounds — make the Galls StreetThunder Megaphone a cinch to operate. Multi-tone Whistle, StreetThunder, Yelp, Wail and Hi-Lo sounds provide attention-getting handheld warning wherever you need it. The Galls StreetThunder Megaphone features feedback-suppressing circuitry for enhanced sound quality. Includes shoulder strap for easy transport. Uses eight C-cell batteries (sold separately).