Califone PA25R Megaphone - 25 W Amplifier - Built-in Amplifier - 4 Hour

Whether on the athletic field, for tour groups, or in emergency response situations, the importance of a clearly heard message can be critical! With its detachable mic for convenience and comfort, these 25Watt megaphones can record up to a 10 second message for playback at the push of a button. The PA25RBT is the first megaphone to deliver the wireless connection so it can transmit audio via Bluetooth Wireless Technology from any mobile device. The PA25RX is the first to connect via a 3.5 mm aux input for broadcasting audio from another wired audio source.

With a 1, 250' range, all three will broadcast your message or a siren so that the entire crowd can hear your information.