Professional doorbell with motion detector, wireless outdoor doorbell kit, split infrared alarm with sensor - LIAIKI

Wireless Receiver: The portable wireless receiver plugs into any standard outlet. The sensor operates on 3 AAA batteries (not included). The detection delay between motion detector alerts is configurable from 15 seconds to 30 seconds; simply place the detector at the entrance to your driveway and the receiver inside your home.The working range between the receiver and transmitter is up to 70 meters, allowing you to place it at an appropriate distance from the receiver to alert your family members.Receiver Operating Voltage: 110V-240VPIR Sensor Operating Voltage: 4.5V (3 AAA batteries, not included)Working Range: Up to 100m; Infrared detection range: up to 7 mReceiver switch settings:Music source: 38 different songsVolume control: high, medium, lowReceiver can be set to ring and muteSound: sound + lightMute: LED