Pyle Bluetooth Bullhorn PA Megaphone - iPhone Megaphone Speaker with Wired Microphone, Siren Alarm Mode, MP3/USB/SD Readers - PMP42BT_0 WIRELESS STREAMING: Built-in Bluetooth receiver allows for wireless music streaming & gives you the ability to project audio files from all of todays latest devices. Setup is simple, connection is hassle-free w/ the soft-touch digital control panel LOUD & CLEAR COMMUNICATION: Use the wired microphone to project your voice clearly or press the button to activate a continuous siren alarm for emergency use COMPACT & PORTABLE: Take the megaphone voice changer wherever you go thanks to its ergonomic and lightweight pistol grip chassis PROFESSIONAL & DURABLE: Heavy duty enough to be trusted for repeated use by the U.S. Armed Forces. Consistent, high quality and nearly indestructible this is a megaphone you can rely on MEGAPHONES FOR CHEERLEADING: Perfect for a variety of activities including cheerleading & sporting events, police mob control & director megaphone on movie sets. High-powered PA speaker projection, 1,200-yard range