650m effective broadcast distance drone loudspeaker

{"cid":"91224379","title":"Professional UAV-Mounted Loudspeaker with 130dB Max Sound Pressure, 650m Broadcast Distance, and One-Click Rotation Quick Release","imgUrl":"https:\/\/img.chinax.com\/nimg\/71\/90\/e1cfbc2d0bbf20ee9ab32dc91118-200x200-1.jpg","attrs":{"Brand Name":"AOISUN","Minimum Order Quantity":"1","Delivery Time":"2 weeks","Payment Terms":"L\/C,D\/A,D\/P,T\/T","Weight":"770g","Dimensions (L\u00d7W\u00d7H)":"146mm\u00d792.5mm\u00d7200mm","Power Supply Voltage":"24V","Maximum Power":"48W","Operating Temperature":"-20\u00b0C ~ +50\u00b0C","Installation Method":"One-click rotation quick release, hot-swappable","Maximum Sound Pressure":"130dB","Effective Broadcast Distance":"650 meters","Pitch Angle":"-90\u00b0~90\u00b0, one-click centering","Call Modes":"Real-time intercom, text-to-speech, audio file playback, recording upload, one-click alarm","Audio Formats":"mp3 \/ wav \/ m4a \/ flac \/ aac","App System Support":"Android 5.0 and above"}}

{"cid":"91223801","title":"50W Drone Speaker Megaphone Airborne Digital Voice Broadcasting System (M300&M350) Kitefiy","imgUrl":"https:\/\/img.chinax.com\/nimg\/17\/7e\/e5038efa06f7700066aad6315623-200x200-1.jpg","attrs":{"Brand Name":"Kitefly","Minimum Order Quantity":"1","Certification":"ISO","Place of Origin":"China","Payment Terms":"T\/T"}}