35 W megaphone with a range of 400 m (1,400 m in open field) and autonomy of 10 hours in voice reproduction. Powered by 8 type C batteries. Includes handheld microphone, clip to hold it on the back, strap to hang on the shoulder or shoulder, and emitting a whistle and siren tone. For groups of up to 350 people. Dimensions 211 Ø x 365 mm. Weight 1.7 kg. Gray.