Enjoy compact, portable and powerful sound projection with the Pyle Bluetooth Megaphone. Built-in Bluetooth receiver allows for wireless music streaming and gives you the ability to project audio files from all of today’s latest devices. Setup is simple and connection is hassle-free with the soft-touch digital control panel. High-powered PA speaker projection lets you control the crowd from a distance with up to a 1,200 yard range. Connect and stream MP3 digital audio files with the SD Card and USB Flash Memory Readers -- or directly connect your device via the Aux (3.5mm) Input. Use the wired microphone to project your voice loud and clear, or press the button to activate a continuous siren alarm for emergency use. The Pyle Bluetooth Megaphone Speaker features versatile audio streaming ability for any crowd control or public gathering events.