ɪɾ ɪz ɐ pˈoːɹɾəbəl dɪvˈaɪs ðˈæt, wˌɛn ˈæktᵻvˌeɪɾᵻd, wɪl bɹˈɔːdkæst ɐ mˈɛsɪdʒ tə ðə dɪspˈætʃ tʃˈænəl, ɐlˈaʊɪŋ ˈɑːfɪsɚz tʊ ɪmˈiːdɪətli ɹᵻspˈɑːnd tə ðə sˈiːn fɔːɹ fˈɜːðɚɹ ɪnvˌɛstɪɡˈeɪʃən.
It is a portable device that, when activated, will broadcast a message to the dispatch channel, allowing officers to immediately respond to the scene for further investigation.