Product Name: Alarm and SirenPlace of Origin: ChinaModel numbers: FBPS4558, FBPS6042, FBPS5556, FBPS407, FBPS7556, FBPS5539, FBPS5630, FBPS3610, FBPS4724, FBPS6285, FBPS5029 Specifications: 1) Size: 54.5 x 55.5mm 2) 105dB/100cm 3) Sound: warble