Chime Door Bell IR motion sensor

IR Motion Sensor Wireless DoorbellExperience convenience and security with the IR Motion Sensor Wireless Doorbell, featuring advanced wireless transceiver technology and a robust microcomputer control system for reliable performance. Key Features: Split design: Transmitter and receiver can be separated by up to 100 meters. Motion Detection: Transmitter activates the receiver upon detecting motion. High-Quality Voice: Includes 32 melodies for customizable alerts. Multi-Functionality: Combines welcome, burglar alarm, doorbell, and night light functions. Power Options: Operates on USB or 3 AAA batteries (not included). Specifications: Material: Plastic Color: White Transceiver Size: About 92x45x35mm Receiver Size: About 117x62x27mm Battery: 3 x AAA batteries (not included) Operating Current: Less than 1mA Receiving Frequency: 433MHz Operating Temperature: -10°C to 50°C Receiving Distance: Up to 100 meters Package Contents: 1 x Transceiver 1 x Receiver 1 x User Manual Note: Due to light and measurement differences, color and dimensions may slightly vary from the pictures and manual measurements provided.