DealMux Pink Plastic Housing Wireless Motion Sensor Welcome Greeting Doorbell Product Name : Welcome Doorbell;Powered By : 3 xAAA1.5VBattery (Not Included)/ DC 9V Power Supply;Detecting Range : 5m-10m Effective Angle : 110 Degree;Alarming SounDepth : 75-95decibels Music : 16 Type;Total Size : 8.1 x 4.2x 8.1cm / 3.2' x 1.7' x 3.2' (L*W*H) External Material : Plastic;Color : Pink Net Weight : 113g;Package Content : 1 x Welcome DoorbellSome Installing Parts