Handheld megaphone with power rating of 20 W RMS (35 W maximum). Power supply 6 batteries R20P (UM1 or D). With siren and music signals. Autonomy up to 10 hours. Audible range approx. 500 m. Volume control. Unidirectional Handheld Microphone with push to talk button. Dimensions 200 mm diameter and 340 mm deep. Weight 1.5 k g (without batteries). Finish white and red ABS. OPTIMUS model ref. MG-120.