The Pyle PMPRA213OR Megaphone offers 20-watt power for clear and loud communication with multiple audio modes, including Talk, Siren, Music, Whistle, and a 60-second record feature. Its built-in automatic siren alarm is perfect for emergency situations. The megaphone includes an aux input (3.5mm) for streaming MP3 or digital audio, and it s compatible with devices like iPhones, Androids, and tablets. The ergonomic grip and lightweight design, combined with a shoulder strap, make this megaphone easy to carry and use anywhere. It s powered by 4 'C' batteries (not included) for convenient mobility.