megaphone with battery 0 5km

{"cid":"91219484","title":"Siren Battery Powered Megaphone With Battery Bullhorn 0.3 - 0.5KM","imgUrl":"https:\/\/img.chinax.com\/nimg\/8a\/2d\/5fc635098151d42d74abdc26134f-200x200-1.jpg","attrs":{"Brand Name":"OEM","Model Number":"JM-8RS","Minimum Order Quantity":"100-300","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":"Packaging 1pc Gift box , 8 Carton","Name":"Battery Operated Bullhorn","Power Output :":"Speaker 20W Raded \/ 30W Max","Battery Type":"4-8 Hours Dry Cell batteries or Lithium battery","Battary":"Charge lthium battery 18650","Frequency Range":"70Hz-20KHz","Material":"ABS Plastic construction","Max SPL":"120 dB","Power Source":"6-9V","Type":"Built-in Siren & Music Microphone","Speaker":"7\" inch","Favorable Range :":"0.3 -0.5 KM","Channels":"1"}}