Break-In Protection When The Door Magnet Is Not Connected, The Ringtone Will Sound And Flash Immediately To Protect Your Family And Property. The Alarm System Has A Wireless Transmission Range Of Up To 150 M Away (In Open Locations) And Approx. 50 M Indoors (Without Walls). Ideal For Door, Window, Front Door, Balcony, House, Garage, Apartment, Dormitory, Rv, Office, Warehouse And So On. Business Alarm The Plug-In Receiver Issues An Alarm And Flashes An Led When A Door Or Window Is Opened. The Receiver Is Wireless, So You Can Place It Anywhere In The House Or Even Move It From Room To Room. Excellent For Notifying Business Owners When Entering The Shops With An Alarm Tone. 4 Notification Modes And 58 Ring Tones And 4 Volumes The Wireless Bell Has 58 Melodies And 4 Volumes (25-85 Db) For Different Requirements. The Doorbell Also Has 4 Notification Modes To Choose From: The Doorbell Flashes, Just Rings, Just Flashes, Lights Up All The Time (Like A Night Lamp). Led Night Light With Motion Detector The Gong Has An Led Night Light Function. The Pir Motion Sensor Detects Movements Up To 3 M And 120 Degrees. The White Light Turns On Automatically When People Are Within Range Of The Detector And Turns Off After You Have Walked For About 30 Seconds. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin