megaphone with battery 0 3km

{"cid":"91219484","title":"0.2 To 0.3KM Weatherproof Outdoor Horn Speakers Battery Powered Megaphone","imgUrl":"https:\/\/img.chinax.com\/nimg\/ef\/32\/57d4a17f9c8405cd423ed70919a1-200x200-1.jpg","attrs":{"Brand Name":"OEM","Model Number":"JM-7S","Minimum Order Quantity":"100-300 Pieces","Delivery Time":"15-25 days","Certification":"CE","Place of Origin":"China","Payment Terms":"T\/T, Western Union, MoneyGram","Supply Ability":"5,000 Capacity Monthly","Packaging Details":"Customizable Packaging in MOQ","Product Name":"Outdoor Loudspeaker Horn","Function:":"Talk , Siren & Music Optional","Sound coverage":"0.2-0.3 KM","Power Source":"Batteries AC\/DC","Frequency Range":"70HZ-20KHz","Material":"ABS\/PP Housing","Set Type":"Speaker","Power Output":"10W","Power":"120dB","Weight":"0.3kg","Dimension:":"140X140X225MM","Working Voltage :":"6V"}}