* SODIAL is a registered trademark. ONLY Authorized seller of SODIAL can sell under SODIAL listings. Our products will enhance your experience to unparalleled inspiration. SODIAL (R) Wireless Door Alarm Window Alarm + Security Secure Remote. Product description:Voltage: DC4.5VVolume: 20dB Dimensions of the door alarm: 97 x 63 x 23 m/ 38.2" x 24.8" x 9.1"Remote control distance: about 30 mDimensions of the Remote Control: 0.5 x 7.5 x 4.5 cmWeight: 642 gType: piecePackage weight: 0.34 kg (0.75 lb)Package dimensions: 7 x 6 x 22 cm (6.69" x 6.30" x 8.66")Package:1 x receiver1 x door alarm1 x accessory1 x screw1 x remote control (with English instructions) Note: Because of the light radiation and screens could be the color tone in the pictures and the actual product may be slightly different. The allowable measurement error is ± 1-3 cm.