25 Watt Portable Megaphone ---The Propagation Distance Is Up To 500m,It Is Applied To Various Occasions Such As Celebration Activities,Training And Marching Band; Support USB Flash Disk--- It Can Connect Various Audio Devices Such As Mobile Phone ,Ipad,Etc,Play All Kinds Of Music; With Bottle Opening Function --- It Applies To The Celebration Activities After The Match; With Transparent Appearance--- It is Popular In The School Or The Other Outdoors; 240S Recording Built-In Siren ---You Can Record Various Sounds As Required; Collapsible Handle With Strap--- It Is Suitable For Sports Activities Such As Football, Baseball, Hockey, Camping, Boating And So On. Battery Powered Uses 4 Pieces C Batteries(Not Included). Material: plastic colour: transparent blue Package Contents: 1 x Megaphone