Deluxe Megaphone with Siren - Red/Grey - 16WOur 16 watt deluxe megaphone features a built-in switch selectable electronic alarm siren, pistol grip, press to talk switch, volume control, and shoulder strap. It is weatherproof. It uses eight C-batteries, which are not included. Specifications Wattage 16W Max. Effective 800 feet Powerful solid state megaphone Built-in switch selectable electronic alarm siren Pistol grip Press-to-talk switch Volume control Shoulder strap Durable weatherproof construction Operates on 8 "C" cells (not supplied) 9.1" Bell Diameter x 14.25" Long 3lbs, 4oz w/o batteries Specifications: Auto Signaling: No Hailer Wattage: 16w Intercom Capability: No Listen-Back: No Color: Red/Grey Box Dimensions: 10"H x 10"W x 15"L WT: 4.5 lbs UPC: 030519143707 Quick Guide (pdf)Owner&';s Manual (pdf)