| 1.power sourece: 9v DC(6*UM-3)2. Max Output:116dB/1M3.Current Consumption:900mA Max4.Service Lifetime of Siren:5h(Until 100dB/1M Output)5.Two Tone:(1)siren (2)talk6.Material:ABS Plastic7.Color: Light Blue8.Size:195*195*270mm9.Net Weight(Without Battery):500g10.Transmission Distance:500m | 
