Infrared Sensor Doorbell Smart Music Reminder Welcome Door Entry Alert Doorbell for Shops Offices

Feature: 1. Human Body Sensing: Using infrared technology, accurate detection of human movement, just approach the doorbell area can be automatically sensed. 2. Intelligent Reminder: When someone is close to the doorbell, infrared sensor can detect in time, and through the music to remind the guests to create a warm shopping ambient. 3. Unique Design: Separate design is convenient for installation and position adjustment, adapting to different store layouts, practical and reliable. 4. Automatic Switching: The infrared sensor is triggered only when someone is close to the doorbell, avoiding unnecessary energy consumption, high efficiency and energy saving. 5. Wide Application: Whether it is a family, office or commercial place, the doorbell can provide convenient and intelligent experience to meet a variety of needs. Specification: Item Type: Infrared Sensor DoorbellMaterial: ABSSensor: Battery type: Lithium battery, Battery model: 9V laminated battery x1 Receiver: Battery type: Lithium battery, Model: AA battery x2 Transmission Distance: Approx. 100 meters/328.1ft (in an open, unobstructed and interference free environment) Infrared Sensing Distance: Approx. 3-7 meters/9.8-23ft. Package List: 2 x Sensor 1 x Receiver 2 x Connector2 x Base 1 x English User Manual