Material PVC + stainless steel Brand N/A Model N/A Color Black Quantity 1 Remote Controlled distance N/A Voice Decibels 120dB Power Supply 1 x 9V battery (not included) Battery Type 1 x 9V battery (not included) Certification No Other Wedge-shape design to fit any hinged door; Adjustable high-medium-low sensitivity; No installation required easy for traveler to carry; 120dB high-pitched continuous siren when activated; Can be used as a door stop when power switches is turned off; Special design for use at home office and hotel room Packing List 1 x Door stop alarm