35 W megaphone with a range of 400 m (1,400 m in open field) and 10 hours autonomy in voice reproduction. Powered by 8 type LR14 batteries. Includes handheld microphone, clip to hold it at the back, strap to hang on the shoulder...
15 W megaphone with a range of 300 m (900 m in open field) and 8 hours autonomy in voice reproduction. Powered by 8 LR6 batteries. It incorporates a microphone and a whistle and siren tone emission...