Long Lasting Battery: The home safety reminder is power efficient, featuring a built in large capacity battery that requires no constant power connection. It can last from 1 to 3 months on a single charge, only 2 hours to recharge. High Sensitivity Detection: Our elderly forgetting reminder equipped with a built in PIR object motion detection module, this doorbell rapidly reacts to movement by emitting a sound within 1 second of detection, instantly alerting you to any activity. Recording Function: The entrance alarm supports user recordings, allowing you to record your own voice for playback. The recording process is straightforward and simple, offering a personalized touch to your reminders. Multi Language Support: The door greeter includes various English voice prompts such as welcome messages, home entry alerts, door closing reminders, no smoking warnings, and watch your step reminders. You can choose from these options to fit your needs. Easy Installation: Our motion sensor alarm installation is a breeze with the doorbell's adhesive backing. Once placed, the doorbell stays firmly affixed, leaving no traces when removed. It also comes with a hook for hanging corresponding signs, adding to its convenience and versatility.