... 1,Outdoor/Indoor siren with strobe2,Product number: FS-073,CE license4,Siren has three operation modes: siren only, strobe light only, or siren and strobe light5 ... protection7,Self-test feature that allows users to check the siren and strobe lights prior to installation8,Super brightness lamp (optional color ... sound21,Weight: 1.2kg CHINA HOT SALE,FS-07,12V outdoor siren with strobe