Feature:1. Long Lasting Battery: The voice prompt doorbell 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.2. High Sensitivity Detection: 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.3. DIY Recording Function: The device 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.4. Multi Language Support: 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.5. Easy Installation: 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.Specification:Item Type: Welcome Doorbell Voice PrompterMaterial: ABSBattery: Lithium ion Battery 500mAh (with built in battery for shipping)Charging Interface: Type C Interface.Package List:1 x Doorbell1 x Charging Cable1 x User Manual1 x Adhesive1 x Backboard