BPYLE-PRO PMP53IN 50 Watts Professional Piezo Dynamic Megaphone with 3.5mm Aux-In For Digital MusiciPod ReviewbP PP PYLE-PRO PMP53IN 50 Watts Professional Piezo Dynamic Megaphone with 3.5mm Aux-In For Digital MusiciPod PPowerful Piezo Driver And Large Bell Diameter For Projection Range Up To One Mile - Ergonomic Pistol Grip And Lightweight ChassisP2 Modes: Talk And Siren - Powered By 8 x C Batteries - Not IncludedPFor IndoorOutdoor Use - Runs On DC 9v Power Supply - Not IncludedPVariable Volume Control - Dimensions: Diameter 9'' x Length 13 34''PPlug In Any External Source With 3.