The Pyle Pro PMP37LED is a lightweight handheld megaphone designed to provide siren and voice amplification for indoor and outdoor public address scenarios. 30W of output power provides a range of up to 800 yards. The megaphone features a built-in microphone, siren mode, and adjustable volume. Use the switchable LED lights to draw additional attention. The pistol grip folds for compact storage. The PMP37LED can be powered by four C batteries (available separately).