DOOR STOP ALARM *Brand Name: Sabre *Color: White *Material: Plastic *Product Type: Door Stop Alarm *Height: 6.25 in. *Width: 1.75 in. *Length: 1.625 in. *Packaging Type: Clamshell *Decibel Rating: 120 dB *On and Off Switch: Yes *Battery Size: 9-Volt *Smart-Enabled: Yes *Requires one 9-Volt battery (not included)