Greencycle Wireless Motion Sensor Door Chime,Doorway Motion Sensor Alarm,Door Chime for Business when Entering,Wireless Door Chime,Anti-theft,918FT Long Distance,for Shops,Homes,Offices,Garage,9PK

【Vibration Reminder with Multiple Voice Prompts】The sensor doorbell features a vibration reminder function with adjustable vibration intensity, catering to different needs. It offers 22 built-in voice prompts and 8 welcome tunes, including a variety of sounds such as welcome greetings, dog barking, alarm sounds, and more, providing a personalized reminder experience. You can choose sounds based on the environment, scene, or mood, and set different alerts for various visitors. 【Long-lasting Power Saving & Power Failure Memory】The motion sensor chime supports dual power sources: alkaline batteries and Micro USB. Even if the batteries run out, you can continue using the device via USB power. Additionally, the door motion sensor features a power failure memory function. In the event of a power outage or battery replacement, the device will automatically restore the last settings, ensuring an uninterrupted user experience. 【Long Range】The doorbell sensor features a transmission distance of up to 280 meters (918 feet), making it ideal for a variety of applications, including shops, stores, office buildings, villas, factories, hotels, and more. The motion sensor ensures reliable signal transmission even in complex environments. Equipped with a 40mm large speaker, it delivers louder and clearer sound, ensuring that the doorbell can be heard in noisy or open spaces, so you’ll never miss a visitor. 【Flexible Pairing System】This motion sensor is perfect for home use and can be easily expanded to suit various environments such as shopping malls, hotels, factories, offices, villas, and more. The ring door sensor supports up to 32 infrared detectors and 8 remote controls, allowing users to configure the system flexibly based on their specific needs. 【Silent and Strong Vibration Mode】The motion sensor alarm offers both silent and strong vibration modes, allowing users to receive alerts discreetly when privacy is needed or when avoiding disturbance. In vibration mode, the alarm will only vibrate to signal the alert, making it ideal for those who prefer to avoid external noise. Additionally, the system features 5 volume levels and 4 light levels, with the lowest setting providing a silent vibration reminder.