AmpliVox Sound Systems, Inc. upgraded its  “Half-Mile Hailer” line of portable PA systems with a red siren alert button. The Hailer is a favorite choice for law enforcement, school administrators, and others who require sound systems for crowd control and emergency preparedness. Adding a siren to the Hailer enhances the ability of officials to issue emergency warnings and crowd control alerts.

The siren comes with an easy-to-use “red button” control. Other features of the Hailer include a 50-watt amplifier, a tapered horn speaker, and wireless microphones that enable the user to see and be seen unlike traditional megaphones.

The Hailer family is great for use in high noise areas and large open spaces. Its “Football Field Sound Range” is effective for crowd control, public safety, law enforcement, athletic events, band practice, field days, outdoor marketing events, auctions, and political campaigns. The Half-Mile Hailer series also helps schools meet the security requirements of the No Child Left Behind Act, which mandates schools to offer secure, safe learning environments for their students.