Home Slickdeals Portable Megaphone Speaker Siren Bullhorn – Battery Operated with 30 Watt Power,... Slickdeals Portable Megaphone Speaker Siren Bullhorn – Battery Operated with 30 Watt Power, Microphone, 2 Modes $11.30 – Free Ship w/Prime By ARCOM - 9 November 2021 63 0 SHARE Facebook Twitter Go to the deal page: Portable Megaphone Speaker Siren Bullhorn – Battery Operated with 30 Watt Power, Microphone, 2 Modes $11.30 – Free Ship w/Prime