uxcell Wall Ceiling Mount 84 Degrees Directions Motion Electric Sensor Doorbell White Product Name : Doorbell;Ring Mode : 2 Types;Powered By : 3 x 1.5V AAA Batteries (Not Included) DC 6V (Power Cable is Not Included) : DC 6V (21 x 9mm Power Cable, Not Included);Sensing Distance : 6-10 Meters Range (Normal Light Required);Install Hole Diameter : 3.5mm/ 0.138" Install Hole Distance : 32mm/ 1.26"(Center to Center);Body Size : 8.1 x 7.4 x 4cm/ 3.2" x 2.9" x 1.6" (W*H*T);Bracket Size : 8.1 x 4 x 5.1cm/ 3.2" x 1.6" x 2"(L*W*H) External Material : Plastic;Color : White;Net Weight : 101g Package Content : 1 x Doorbell;1 x Bracket : 1 x Bracket