Amplivox Half Mile Hailer Sound System with Hardwired Microphone - Portable PA System for Outdoor Events, Stadiums, and Emergency Announcements

Amplivox Wireless Speaker with Half Mile Range - Portable PA System for Outdoor Events, Sports, and Emergency Announcements

Amplivox Half Mile Hailer Wireless Sound System - Headset & Lapel Mic for Outdoor Events, Public Speaking, and Emergency Announcements

Half Mile Hailer Wireless Handheld Megaphone - Long Range Bullhorn with 1200m Range for Outdoor Events, Sports Games & Emergency Situations

Amplivox Half Mile Hailer Wireless Headset & Lapel Microphone System - Perfect for Outdoor Events, Public Speaking & Crowd Control