Alarm Siren Different clear sounds outputing, used to announce messages or warn people if there is emergency Voice can beamplifiedthrough the microphone, also adjustable. Highquality and good afer-sale service. Good selling prospect. Specifications: Voice coil Impedance:6/8/12Ohm Voice coil Dimension(Dia):¢25.6mm Rated voltage:12VDC Operating voltage:9-16VDC Output Power:15W/20W/25W/30W Min.S.P.L:105/108/112/115dB(at rated voltage at 1m) Max.Rated Current:550/1000/1200/1500mA Tone Nature:Warble/1-Tone/3-Tone/6-Tone Operating Temperature:-20 +60°c Weight:832±10g ADX CO., LTD reserves the right to make changes in any specification, data or material contained herein