General description This Wireless Doorbell Electric Door Chime Kit includes 1 Receiver and 1 PIR Motion Detector, providing an effective visitor alert and security alarm system. With customizable alerts featuring 38 different chimes and three volume levels, this system is ideal for homes, offices, stores, and other buildings. It can also serve as a signal for animals entering or leaving an area. Technical specifications Receiver working voltage: 110-240V Transmitter working voltage: 4.5V (3 AAA batteries) Receiver size: 76 x 80 x 33 mm Transmitter size: 80 x 59 x 45 mm Working distance: up to 70 meters PIR motion detection distance: 3-7 meters Weight: 0.16 kg Packing size: 10 x 9 x 9 cm Installation Plug the receiver into a socket to power it on. Open the battery cover of the detector and insert 3 AAA batteries, ensuring correct placement. Mount the sensor using the rotatable bracket, ideally at a height of about 2 meters. Slide the detector switch to the ON position and wait 10