TOA ER1215S Megaphone is a compact hand held stylish megaphone with a siren function. Pressing the siren button sounds a siren continuously in emergency conditions. TOA ER1215S Megaphone provides excellent acoustic performance and enhanced audio quality with a wide frequency range. The Mouthpiece, microphone and handle are antibacterial treated, and are made from ABS or ASA high durability resin construction.