The Pyle PMP57LIA is a versatile 50-watt portable megaphone with multiple audio functions, including Talk, Siren, and MP3 playback via Usb and Sd memory cards. With a projection range of up to 1,200 square yards, it ensures your voice carries over long distances, making it ideal for crowd control, public events, or emergency situations. This megaphone includes a convenient 3.5mm Aux input for connecting and streaming audio from external devices such as MP3 players, smartphones, or tablets. Featuring a rechargeable lithium battery for portable use, it also provides the option to run on 8 'C' batteries (not included). Built with a comfortable ergonomic pistol grip and a wired handheld microphone, it combines power and convenience for all your communication needs.