AmpliVox APLS601 Megaphone:

This is a handheld microphone with built-in 16 channel UHF wireless transmitter. Input sensitivity adjustment offers convenient control over audio level Easy-to-access power/mute control switch...

Megaphones; Operating Distance: 100.0 ; Signal Alarm: Yes ; Peak Power Rating: 10.0 ; Sounds: General Alert ; Number Of Batteries: 1

Includes amplifier (SW805A) with horn speaker. Transmitter and headset mic for use as a stand alone wireless PA system. 16 Channel UHF wireless receiver from 584MHz - 608MHz. Emergency siren...

This product is heavy and/or oversized and may need more than one person to handle.