AmpliVox S680 Mega Hailer PA SystemAmpliVox S680 Mega Hailer PA Systemx Heavy-duty construction for use indoors or outdoors Built-in USB charger for charging smartphones and tablets Rechargeable SLA batteries provide 10 hours of operationA highly intelligible, lightweight rechargeable battery poweredloudspeaker system for general PA applicationsBroadcast crystal clear voice announcements and reinforces soundBroadcast crystal clear voice announcements and reinforces soundxThe AmpliVox S680 Mega Hailer Mobile PA System is a 50-watt, totally wireless, highly intelligible, lightweight rechargeable battery powered loudspeaker system for general PA applications in areas that are not equipped with a PA. The horizontally aligned horn broadcasts crystal clear voice announcements and reinforces sound to make it louder to audiences over large wide areas. The S680 has a built-in Bluetooth module that allows you to wirelessly stream sound from any Bluetooth capable device. Operates up to ten hours on its SLA batteriesOperates up to ten hours on its SLA batteriesxThe S680 system includes an AC power-cord for continuous operation when connected to a standard AC wall-outlet, and facilitates charging the included internal sealed lead acid (SLA) batteries. On a full charge, the system will operate up to ten hours on its SLA batteries power. During emergencies, the battery-powered design of the S680 PA System sets up quickly and allows you to broadcast emergency information even during power outages. The AmpliVox S680 Mega Hailer Mobile PA system includes a 6-year limited . Please view the S680 Mega Hailer PA System video below: