Connected Doorbell and Video Doorbell -Wireless Doorbell Highlights Generic Brand Wireless Doorbell Description: 100% brand new and high quality The arrival/departure chime receiver is a doorbell design with 36 different ringtones for personal preferences. The detector uses a state-of-the-art PIR sensor to detect any movement within the detection area Completely wireless operation - no wires or cables required Ideal for residential home, work building, hotel, factory and so on Suite Specification: Receiver Working Voltage: 220V Plug Type: EU Plug PIR Detector Working Voltage: 4.5V, 3 AAA batteries (not included) Built-in 36 melodies for your choice Volume: 4 levels adjustable (25 -80dB) Can be set to sound and silent mode Working range: up to 100 meters Doorbell receiver dimension (LxWxH): 9.5x6x3.4cm Detector dimension (LxWxH): 8.4x6x2.3cm Package includes: 1x PIR detector 1x Wireless Receiver 1x User Manual Note: Please keep the detector and the receiver of the arrival/departure chime in sheltered places to avoid contact of the two units form water and direct light of the sun. When the LED indicator does not light up, the battery is low or dead. At this time you should change the batteries. Regularly clean the detective with a damp cloth to prevent the sensor from being clogged with dirt or small particles. Try to keep it in areas where it won't get wet. Also, during heavy storms and snowfall, it is recommended to move the device indoors or to a safe location. Never attempt to disassemble the units. When the device is not in use, remove all batteries; clean both units and store the units in a cool, dry place. The Alert Alley is not a toy and should be kept out of reach of children. Do not place the detector in areas where the wind moves it. Also try to keep the detector in a clear path to the receiver for best performance.