LITUILI Infrared Induction Welcome Doorbell Anti-theft PIR Motion Detector Wireless Door Bell Chime Sound Player Wireless Door Greeter Sensor Alarm Home Store Office

LiTuiLi. Material: ABS. Power supply mode Battery type: 3AAA batteries or Power cord supply battery and power cord not included). Color: black, white. Size: 8250mm(3.231.97in L W). Package: 1pc Welcome Doorbell. Power supply mode Battery type: 3AAA batteries or Power cord supply battery and power cord not included). Color: black, white. Size: 8250mm(3.231.97in L W). Material: ABS. Package: 1pc Welcome Doorbell. Features: 1. Humanized design, simple installation, no need for professional installation, ready to install and use. 2. Infrared sensor, available day and night, regardless of day or night. 3. The volume is adjustable in three levels. Adjust the sound to suit your needs according to your location. 4. High sensitivity, sensing distance 2-7 meters. Sensing range can be adjusted freely. 5. Bracket activity range: 360° free rotation without dead ends. 6. Dual power supply, available battery/power supply battery and power cord not included. Function Description: 1. Normal mode: